| | abandon | n. 没有约束,放任情绪 lacking restraint or control; feeling of extreme emotional intensity; unbounded enthusiasm | 
| abdomen | n. 腹,下腹(胸部到腿部的部份) belly, or that part of the body between the thorax and the pelvis | 
| abduct | v. 绑架,拐走 carry off by force; kidnap | 
| abduction | n. 绑架 the criminal act of capturing and carrying away by force | 
| abide | v. 忍耐,忍受,遵守 endure; put up with; bear; tolerate | 
| abject | a. 穷困潦倒,卑微 being of the most miserable kind; wretched; lacking pride; brought low in condition or status | 
| abnormal | a. 反常的,异常的,变态的 unusual; not typical; not normal | 
| abolition | n. 废除,取消 ending; act of abolishing; act of doing away with | 
| abracadabra | n. 咒语,胡言乱语 magical charm or incantation having the power to ward off disease or disaster; foolish or unintelligible talk | 
| abrasive | a. 摩擦的,粗糙的,研磨剂 rubbing away; tending to grind down | 
| absent | a. 缺少的,不在的,缺席的 go away or leave; missing; not present | 
| absenteeism | n. 旷课,旷工 habitual not to appear, especially for work or other regular duty | 
| absolute | a. 完全的,肯定的 perfect in quality or nature; complete; totally unlimited; certain | 
| absolution | n. 赦免,免除 act of absolving or the state of being absolved; formal remission of sin imparted by a priest | 
| absolve | v. 谅解 pronounce clear of guilt or blame; grant remission of sin to; acquit | 
| absorb | v. 吸收,合并 assimilate or incorporate; suck or drink up; occupy full attention | 
| abstinence | n. 节制(饮食) restraint from eating or drinking;  refraining from indulging appetite or desire | 
| abstract | a. 抽象的 theoretical; not concrete; not applied or practical; difficult to understand | 
| absurd | a. 荒谬的,可笑的 preposterous; ridiculously incongruous or unreasonable; foolish | 
| abundance | n. 丰富,充裕 great or plentiful amount; fullness to overflowing | 
| abundantly | ad. 丰富地 in great numbers; in a plentiful or sufficient degree; plentifully | 
| abuse | n. 滥用,虐待 improper use or handling; misuse | 
| abusive | a. 粗俗的侮辱,对身体有害的 coarsely insulting; physically harmful; characterized by improper or wrongful use | 
| abyss | n. 深渊,深坑,无底洞 enormous chasm; vast bottomless pit; any deep, immeasurable space; hell | 
| academic | a. 学术的 related to school; not practical or directly useful; relating to the scholarly organization; based on formal education | 
| accelerate | v. 加速 move faster; cause to develop or progress more quickly; occur sooner than expected | 
| acceleration | n. 加速度 a faster rate of improvement; the rate of change of velocity to time | 
| access | n. 接触,接近(的机会) approach; entry; entrance | 
| accessible | a. 可得到的 easily approached or entered; obtainable; easy to talk to or get along with | 
| accessory | n. 附件 additional object; useful but not essential thing; subordinate or supplementary item | 
| accident | n. 意外事件,事故 an event that takes place without one's foresight or expectation; sudden, and unexpected event | 
| accidental | a. 意外的,偶然的 unexpected; happening by chance, unintentionally   | 
| accidentally | ad. 意外地,偶然地 inadvertently; by chance; casually; fortuitously; not essentially or intrinsically | 
| accommodate | v. 招待,食宿,适应 do a favor or service for; provide for; supply with; make suitable; adapt; allow for | 
| accommodating | a. 乐于助人的 helpful in bringing about a harmonious adaptation | 
| accomplice | n. 共犯,同伙 partner in crime; associate in wrongdoing | 
| accomplish | v. 完成,达到,实现 succeed in doing; bring to pass; achieve; reach the end of; complete | 
| accord | n. 一致,协议 settlement or compromise of conflicting opinions; written agreement between two states | 
| accordion | n. 手风琴 a box-shaped musical instrument consisting of a folded central part with a keyboard | 
| accumulation | n. 积聚 increase by natural growth or addition; concentration | 
| accusation | n. 谴责,控告 indictment; charge of wrongdoing that is made against a person or other party | 
| accustomed | a. 习惯了的 habitual to; used to; frequently practiced, used, or experienced; customary | 
| achieve | v. 完成,实现 gain with effort; accomplish; fulfill | 
| acknowledge | v. 认可,承认 declare to be true or admit; express obligation, thanks | 
| acme | n. 顶点 the highest point or level, as of achievement or development; maturity or perfection of animal | 
| acne | n. 粉刺 skin condition, usually of the face that is common in adolescents, characterized by red pimples, caused by inflammation | 
| acquaint | v. 熟悉 inform about; cause to come to know personally; make familiar | 
| acquaintance | n. 熟人 personal knowledge or information about someone or something | 
| acquire | v. 获取 gain through experience or effort; gain possession of; locate with a tracking system | 
| acquittal | n. 无罪开释 state of being found or proved not guilty; judgment of not guilty | 
| activate | v. 刺激,使活动 make active or more active; stimulate; make radioactive | 
| actively | ad. 活跃地,积极地 energetically; vigorously; voluntarily, not passively | 
| acute | a. 精明,敏锐,聪明 quickly perceptive; keen; having a sharp point or tip; extremely sharp or severe | 
| adage | n. 格言,谚语 wise saying; brief familiar proverb;  expression of popular wisdom | 
| adamant | a. 坚硬,不动摇 extremely hard; inflexible; stubbornly unyielding | 
| adapt | v. 改变 make fit for; change to suit a new purpose | 
| adaptable | a. 能适应的,适应能力强的 flexible; becoming or being made suitable to a particular situation or use | 
| adaptive | a. 适合的,适应的 having a capacity for adaptation; capable of adapting | 
| addiction | n. 瘾,依赖 the compulsive physiological and psychological need for a substance; being abnormally dependent on something | 
| addictive | a. (使人)上瘾的 something you cannot stop taking once you have started | 
| additional | a. 另外的,附加的,额外的 further; extra; supplemental or added to | 
| address | v. 发表(演讲),处理,讨论 make a formal speech to; deal with or discuss; direct efforts or attention of | 
| adept | a. 擅长于 expert at; very skilled; having or showing knowledge and skill and aptitude | 
| adhere | v. 黏着 stick fast; stick to firmly; be compatible or in accordance with | 
| adhesive | n. 胶,粘贴物 glue; paste; the substance that unites or bonds surfaces together | 
| adjacent | a. 邻近的,毗邻的 adjoining; neighboring; close to; lying near | 
| administer | v. 管理 govern; supervise; give or apply medications | 
| administration | n. 管理,行政管理,政府,行政机关 management; supervision; people who are in charge of management; the activity of government for powers and duties | 
| admiration | n. 钦佩,赞美 favorable judgment; feeling of pleasure, wonder, and approval | 
| admittedly | ad. 公认地,诚然,无可否认地 doubtlessly; in an acknowledged manner; confessedly | 
| ado | n. 忙乱,骚扰 doing; bother; troublesome business; fuss; bustle | 
| adolescence | n. 青春期 state of growing up from childhood to manhood or womanhood; transitional period between youth and maturity | 
| adopt | v. 采用,采纳 accept; take on; raise; take into one's family | 
| adorable | a. 迷人的,可爱的 deserving to be adored; worthy of divine honors | 
| adore | v. 崇拜,热爱 worship with profound reverence; pay divine honors to; regard with the utmost esteem and affection | 
| adorn | v. 装饰 enhance or decorate with or as if with ornaments | 
| adornment | n. 装饰,装饰品 embellishment; decoration; something that beautifies or adorns; ornament | 
| advance | v. 提高,发展,提升 proceed; move forward; improve; moving forward | 
| advanced | a. 高级的,年老的,先进的 improved; highly developed or complex; ahead of the times; progressive | 
| adversary | n. 对手 the opponent in a contest; someone who offers opposition | 
| adverse | a. 讨厌,敌意 in opposing direction; harmful or unfavorable; acting or serving to oppose | 
| adversity | n. 贫困,不幸 state of misfortune, hardship, or affliction; misfortune | 
| advisable | a. 从善如流的,适当的,可行的 proper to be advised or to be done; expedient; prudent; ready to receive advice | 
| advisory | a. 劝告的 having the power to advice; containing advice | 
| advocate | v. 辩护 speak, plead, or argue in favor of; plead for; push for something | 
| aesthetic | a. 审美的 elegant or tasteful; of or concerning the appreciation of beauty or good taste | 
| affect | v. 影响,假装 have an emotional or cognitive impact upon | 
| affected | a. 假的,做作的 speaking or behaving in an artificial way; emotionally stirred or moved; infected or attacked | 
| affection | n. 友爱,挚爱,情爱 fondness; tender feeling toward another; fondness | 
| affectionate | a. 亲爱的,挚爱的 having affection or warm regard; loving; fond; kindly inclined; zealous | 
| affidavit | n. 宣誓书 written statement made under oath | 
| affiliation | n. 联合,加入 partnership; alliance; association in the same family or society | 
| affirmative | a. 赞成的,肯定的 confirmative; ratifying; giving assent or approval; confirming | 
| affliction | n. 痛苦 cause or condition of pain, suffering, or distress | 
| affluent | a. 富有的,丰富的 having an abundant supply of money or possessions of value | 
| aftermath | n. 后果,结果 outcome; consequence, especially of a disaster or misfortune | 
| agenda | n. 议程 items of business at a meeting; list or program of things to be done or considered | 
| agent | n. 方法,工具,代理人 one that acts on behalf of other persons or organizations | 
| aggravating | a. 恼人的,讨厌的 irritating; annoying; making worse or more heinous | 
| aggregate | v. 收集,聚集 gather into a mass, sum, or whole; amount to | 
| aggressive | a. 强有力的,坚持己见的 making assaults; unjustly attacking; combative; hostile; tending to spread quickly | 
| aggressor | n. 攻击者 one that engages in aggression; a person who first attacks | 
| agitated | a. 被鼓动的,不安的 disturbed; excited; expressing agitation | 
| agony | n. 极大痛苦 the extreme pain of mind or body; anguish; last struggle of life; death struggle | 
| agreement | n. 一致,协议 state of agreeing; harmony of opinion, statement, action, or character | 
| airborne | a. 空气传播的,空运的,空降的 aloft; flying; in the air | 
| airtight | a. 密封的 impermeable to air or other gases; having no weak points; sound | 
| ajar | a. (门窗等)微开的 half-open; slightly turned or opened | 
| alias | n. 别名 assumed name; another name; a name that has been assumed temporarily | 
| alien | a. 外国的,外国人的,来自其他星球的 dissimilar, inconsistent, or opposed in nature; very different place, society, or person | 
| alienate | v. 孤立,树敌 cause to become unfriendly or hostile; transfer property or ownership; isolate or dissociate emotionally | 
| alienated | a. 疏远的,被隔开的 isolated; excluded; estranged; having become indifferent or hostile to one's peers or social group | 
| alimony | n. (离婚后的)生活费,抚养费 payment by a husband to his divorced wife, or vice versa | 
| allegiance | n. 忠诚 loyalty to a nation, sovereign, or cause; fidelity to any person or thing; devotion | 
| allegory | n. 寓言 symbolic representation of abstract ideas or principles in narrative, dramatic, or pictorial form | 
| allergic | a. 过敏的,讨厌的 excessively sensitive; susceptible; having an allergy | 
| allergy | n. 过敏症,厌恶 hypersensitivity reaction; abnormally high sensitivity to certain substances | 
| alleviate | v. 解脱,释放,释然 provide physical relief, as from pain; make easier; remove in part | 
| alley | n. 小巷,小径 a narrow passage, especially a walk or passage in a garden or park, bordered by rows of trees or bushes | 
| alligator | n. 短吻鳄(一种鳄鱼) large carnivorous reptile of the Crocodile family, peculiar to America | 
| alloy | v. 混合,减少纯度 combine; mix; make less pure; lessen or moderate | 
| alloy | n. 合金 mixture; a combination of diverse things | 
| allure | v. 诱惑,引诱 attract with something desirable; be highly, often subtly attractive | 
| ally | n. 联盟,同盟者 confederate; partner; collaborator | 
| almond | n. 杏树,杏仁 deciduous tree, native to Asia and northern Africa and having simple leaves, pink flowers, and leathery fruits | 
| aloft | ad. 向上 in or into a high place; high or higher up | 
| aloof | a. 分离,保留 apart; remote in manner; distant physically or emotionally; reserved and remote | 
| altar | n. 祭坛,圣坛 raised structure on which sacrifices are offered or incense burned to a deity | 
| altercation | n. 大声争吵,激烈争论 a noisy quarrel; contention in words; dispute carried on with heat or anger; controversy | 
| alternate | a. 交替的,轮流的 happening or following in turns; succeeding each other continuously; substitute | 
| altitude | n. 高度 elevation especially above sea level; height | 
| ambrosia | n. 神仙食品,美味 something with delicious flavor or fragrance; fruit dessert made of oranges and bananas with shredded coconut | 
| ambush | n. 埋伏,伏击 disposition or arrangement of troops for attacking an enemy unexpectedly from a concealed station | 
| amend | v. 修订,修改,变更 change for the better; improve; remove faults or errors | 
| amendment | n. 改正,修正 a change or changes made to the words of a text; revision | 
| amid | ad. 在…中 in the middle of; among; surrounded by | 
| amiss | a. 错误 out of proper order; not in perfect shape; faulty | 
| ammunition | n. 军火,弹药 military stores or provisions; articles used in weapons, as powder, balls, shot, shells | 
| amnesia | n. 失忆,健忘 partial or total loss of memory, usually resulting from shock or illness | 
| amnesty | n. 原谅 the general pardon granted by the government, especially for political offenses | 
| amoral | a. 不道德的 lacking moral sensibility; not caring about right and wrong | 
| ample | a. 丰富的,富足的 more than enough in size or scope or capacity; relatively large | 
| amulet | n. 护身符 object worn, especially around the neck, as a charm against evil or injury; charm | 
| analogy | n. 类比,相似 the similarity in some respects; comparison based on similarity | 
| anarchy | n. 无政府主义 absence of governing body; state of disorder; political disorder and confusion | 
| ancestor | n. 祖先,祖宗 forefather; forebear; forerunner or predecessor | 
| ancestry | n. 祖先 family descent; series or line of ancestors; lineage | 
| anchor | v. 固定,锚 secure or fasten firmly; be fixed in place; narrate or coordinate | 
| anecdotal | a. 轶闻的,多轶闻趣闻的 having the character of an anecdote; of a short story of any interesting or humorous incidents | 
| anecdote | n. 奇闻轶事 a short account of the amusing or interesting event; short narrative; a secret story of history or biography | 
| anemia | n. 贫血 condition in which blood lacks red corpuscles; deficiency of red blood cells; lack of vitality | 
| anesthetic | n. 麻醉药 a substance that causes loss of sensation; producing temporary loss or impairment of feeling | 
| anguish | n. 极度痛苦 agonizing physical or mental pain; extreme suffering | 
| animated | a. 活跃的,有生气的 having life or vigor or spirit; filled with activity; in the form of cartoon | 
| animation | n. 兴奋,活跃 act of animating or giving life or spirit; state of being animate or alive | 
| animosity | n. 仇恨 bitter hostility; active hatred; hostile feeling or act | 
| ankle | n. 脚踝 the joint which connects the foot with the leg; tarsus | 
| annex | v. 接手,附加 append or attach; take possession of; incorporate into an existing political unit | 
| announce | v. 宣布,发表,通告 herald; give out; proclaim; make known publicly | 
| announcement | n. 宣告,发表 formal public statement; an act of making known publicly | 
| annoy | v. 使恼怒,打扰 disturb, especially by minor irritations; irritate | 
| anomaly | n. 不规则,异常,反常 irregularity; a person or something unusual; departure from the normal or common order | 
| anonymity | n. 匿名 state of being nameless; one that is unknown or unacknowledged | 
| anonymous | a. 匿名的 having no name; having an unknown or unacknowledged name | 
| antenna | n. 触角,天安线 organ of sensation, attached to the heads of insects; sensory appendage, as in function or form | 
| anterior | a. 较早的,以前的,在前面的 before in time; antecedent; placed before or in front | 
| anthem | n. 圣歌,赞美诗 song of praise or patriotism; the song of devotion or loyalty | 
| anthropologist | n. 人类学家 one who studies history and science of mankind | 
| anthropology | n. 人类学 social science that studies origins and social relationships of human beings | 
| antibiotic | a. 抗菌的,抗生的 of or relating to a chemical substance that kills microorganisms and cures infections | 
| anticipate | v. 预期,预料 act in advance of; deal with ahead of time; predict | 
| antidote | n. 解药 medicine to counteract a poison or disease; an agent that relieves or counteracts | 
| antiquated | a. 过时的,陈旧的 too old to be fashionable, suitable, or useful; obsolete; aged | 
| antiseptic | n. 抗菌物 a substance that prevents infection; a substance that restricts the growth of disease-causing microorganisms | 
| anxious | a. 渴望的,担忧的 eager; keen; worried; uneasy, and apprehensive about an uncertain event or matter | 
| aorta | n. 主动脉 the great artery which carries the blood from the heart to all parts of the body; the main trunk of arterial system | 
| ape | v. 模仿 imitate; mimic, as an ape imitates human actions | 
| apocalyptic | a. 启示的,启示录的 prophetic; involving or portending widespread devastation | 
| apology | n. 道歉,歉意 acknowledgment expressing regret or asking pardon for a fault or offense; explanation or excuse | 
| appalling | a. 骇人的,可怕的 causing or fitted to cause dismay or horror; frightful | 
| apparatus | n. 器械,设备 a group of parts that work together to perform a given function; appliance, or device for a particular purpose | 
| apparel | n. (精致的)衣服 external clothing; vesture; garments; dress; a small ornamental piece | 
| appeal | n. 吸引力 attraction; charm; attract; fascinate; challenge | 
| appealing | a. 动人的,媚人的 attractive or interesting; charming | 
| appease | v. 平静,安抚 bring peace, quiet, or calm to; satisfy or relieve | 
| appetite | n. 胃口,食欲 instinctive physical desire, especially one for food or drink | 
| appliance | n. 用具,器具 durable goods for home or office use; device or instrument for household use | 
| application | n. 勤奋的付出,密切关注 close attention; work of applying something; verbal or written request for assistance | 
| apply | v. 应用,适用 exert; put into service; avail oneself to; | 
| apportion | v. (按比例或计划)分配 distribute; allot; give out as one's portion or share | 
| appreciate | v. 感激,增值,赏识 be thankful for; increase in worth; be thoroughly conscious of | 
| appreciative | a. 感谢的,赞赏的 having or showing a just or ready appreciation or perception | 
| apprehend | v. 逮捕,惧怕,领会 take into custody; arrest a criminal; grasp mentally; perceive | 
| approaching | a. 接近的,逼近的 impending; of the relatively near future; coming closer to another | 
| appropriate | v. 获得,挪用,据为己有 acquire; take possession of for one's own use; set apart for specific use | 
| appropriation | n. 拨款 funding;  money set aside for a specific purpose | 
| apron | n. 围裙 an article of dress, of cloth or other stuff, worn on the forepart of the body, to keep the clothes clean | 
| aptitude | n. 能力,才能 inherent ability; quickness in learning and understanding | 
| aptly | ad. 适当地,得体地 in a competent, capable manner; in an apt or suitable manner | 
| arbitrary | a. 反复无常,随机的 randomly chosen; determined by chance or impulse, and not by reason or principle | 
| arbitrator | n. 仲裁者 someone chosen to judge and decide the disputed issue;  one having the power to make authoritative decisions | 
| arcade | n. 拱廊 covered passageway, usually lined with shops; simple arched opening in a wall; vault or vaulted place | 
| archer | n. (运动或战争中的)弓箭手,射手 bowman, one skilled in the use of the bow and arrow | 
| archipelago | n. 群岛 group of closely located islands | 
| architecture | n. 建筑,建筑学 art and science of designing and erecting buildings; buildings and other large structures | 
| archives | n. 档案,档案馆 public records; place where public records are kept | 
| ardent | a. 热心的,热情的 displaying or by strong enthusiasm or devotion; passionate | 
| arena | n. 竞技场,舞台 a playing field where sports events take place; a large structure for open-air sports or entertainments | 
| aria | n. 独唱曲 operatic solo; a solo vocal piece with instrumental accompaniment | 
| arid | a. 荒芜的 dry; lacking moisture, especially having insufficient rainfall to support trees or plants | 
| aroma | n. 香气,芬芳,芳香 fragrance; scent; pleasant characteristic odor, as of a plant, spice, or food | 
| aromatic | a. 芬芳的 fragrant or sweet-smelling; caused by fragrant odor | 
| arouse | v. 刺激,激起,唤醒 excite; stimulate; awaken from or as if from sleep | 
| array | v. 排列,整理 set out for display or use; place in orderly arrangement | 
| arrest | v. 阻止,引起注意,吸引 stop or slow down; catch someone's attention; take into custody | 
| arrogance | n. 傲慢,骄傲 overbearing pride; haughtiness; manifest feeling of personal superiority in rank, power, or estimation | 
| arrogant | a. 傲慢的,自大的,傲慢 arising from feeling or assumption of one's superiority toward others | 
| arsenal | n. 军火库 storage place for military equipment; a stock of weapons | 
| arsenic | n. 砒霜,砷 a solid substance resembling metal in physical properties, but in its chemical relations ranking with the nonmetals | 
| arson | n. 纵火,放火 malicious burning of a dwelling house or outhouse of another man, which by the common law is a felony | 
| arsonist | n. 纵火犯 criminal who illegally sets fire to property | 
| arthritis | n. 关节炎 inflammation of a joint or joints | 
| article | n. 论文,文章 essay; editorial; individual thing or element of a class | 
| articulate | a. 有效的,独特的 expressing oneself easily in clear and effective language | 
| artifact | n. 人造物品 the object made by human beings; inaccurate observation, effect, or result | 
| artillery | n. 大炮,炮兵 large weapons, such as cannon and missile launchers operated by crews; army branch in use of large weapons | 
| ascertain | v. 确认,确证 find out for certain; discover with certainty; make sure of | 
| ascribe | v. 归因于,指派 inscribe or dedicate; attribute to a specified cause, source, or origin; assign as a quality | 
| asinine | a. 愚蠢 utterly stupid or silly; inanely foolish | 
| asparagus | n. 芦笋(可作蔬菜) tender young shoots of a Eurasian plant, having leaf-like stems, scale-like leaves, and small flowers | 
| aspect | n. (问题的)方面,(事物的)一部分 distinct feature or element in a problem | 
| asphalt | n. 沥青 a brownish-black solid or semisolid mixture of bitumen obtained from nature or as a petroleum byproduct | 
| aspire | v. 热望,热心于 seek to attain; long for; strive toward an end | 
| assault | n. (武力)袭击,(口头)攻击 a violent attack; an onslaught | 
| assembly | n. 集会,参加集会的人们 gathering; meeting; a group of persons gathered together for a common reason | 
| assert | v. 断言 declare or state with confidence; put oneself forward boldly | 
| assessment | n. 评价,评估,判断 act of judging or assessing; amount determined as payable | 
| asset | n. 财产,资产 properties; advantage; useful or valuable quality | 
| assimilate | v. 吸收,同化 incorporate and absorb into mind; make similar; cause to resemble | 
| assist | v. 援助,帮助 give help or support to, especially as a subordinate | 
| assistant | n. 助手,助教 helper; a person who assists or helps someone else | 
| assumption | n. 假定,设想,采取 something taken for accepted as true without proof; taking over or taking possession of | 
| assurance | n. 担保,保证,确定,自信 promise or pledge; certainty; self-confidence; freedom from doubt | 
| assured | a. 自信的,确定的 made sure; exhibiting confidence or authority; indubitable | 
| asteroid | n. 小行星 small planet; any small celestial bodies that revolve around the sun | 
| asthma | n. 哮喘症 chronic respiratory disease, often arising from allergies | 
| astral | a. 关于星的 relating to stars; star-shaped | 
| astray | a. 迷路的,误入歧途的 away from the correct path or direction, either in a literal or in a figurative sense; wandering | 
| astronomical | a. 巨大,广阔 enormously large or extensive; relating to astronomy | 
| astute | a. 聪明,敏锐 wise or keen; shrewd; with sharp intelligence | 
| asylum | n. 庇护所 place of refuge or shelter; protection | 
| atlas | n. 地图集 a bound volume of maps, charts, or tables | 
| atone | v. 补偿,偿还 make amends, as for sin or fault; pay for; turn away from sin | 
| attach | v. 系,缚,附加 fasten; annex; be in contact with | 
| attain | v. 获得,完成 achieve or accomplish; gain | 
| attainment | n. 成就 something, such as an accomplishment or achievement; achievement | 
| attentive | a. 专心的,专注的,全神贯注 alert and watchful; considerate; thoughtful | 
| attest | v. 证明 testify; authenticate, affirm to be true | 
| attic | n. 阁楼,顶楼 story or room directly below the roof of a building, especially a house; | 
| attire | n. 穿着,服饰(正规服装的总称) clothes, especially of a particular or formal type; dress | 
| attorney | n. 代理人,辩护律师 lawyer; one who is appointed by another to act in his place or stead; proxy | 
| attract | v. 吸引,引起注意 draw to, or cause to tend to; engage or fix, as the mind, attention; invite or allure | 
| attribute | n. 属性,声望 essential quality; reputation; honor | 
| auction | n. 拍卖 public sale of property to the highest bidder | 
| audacity | a. 大胆,鲁莽 daring spirit, resolution, or confidence; venturesome; reckless daring | 
| audit | v. 旁听,稽核,审查 examine, verify, or correct the financial accounts of | 
| audit | n. 核算,稽核 examination of accounts; adjustment or correction of accounts | 
| audition | v. (对艺人的)面试(试演) take part in a trial performance; evaluate in a trial performance | 
| auditorium | n. 听众席,观众席 area of theater or concert hall where the audience sits | 
| auger | n. 螺丝钻,钻孔机 hand tool for boring holes; hollow drill used to take core samples of soil, ice | 
| august | a. 威严的,令人印象深刻的 impressive; majestic; inspiring awe or admiration | 
| aurora | n. 极光 a natural appearance of coloured light in the sky, that is usually seen nearest the Arctic or Antarctic | 
| authentic | a. 真的,可靠的,确实的 not counterfeit or copied; valid; trustworthy | 
| authoritative | a. 权威,独裁 weighting authority; peremptory and dictatorial | 
| authority | n. 权力,权限,权威人士 jurisdiction; power to enforce laws, exact obedience, command, determine, or judge; government | 
| authorization | n. 授权,委任状 act of giving authority or legal power; establishment by authority; sanction or warrant | 
| authorize | v. 授权,批准 empower; give permission for; sanction | 
| autonomy | n. 自治,自治权 independence; self-government or the right of self-government; self-determination | 
| autopsy | n. 验尸 examination of dead body; post-mortem | 
| auxiliary | a. 辅助的 helper, additional or subsidiary | 
| avail | v. 利用,效用,促进 turn to the advantage of; be of service to; profit; promote | 
| avalanche | n. 雪崩 a great mass of falling snow and ice | 
| avenge | v. 复仇 take vengeance for something, or on behalf of someone | 
| aversion | n. 厌恶,抵制 firm dislike; turning away; avoidance of a thing, situation, or behavior because of dislike | 
| avert | v. 转移,防止 prevent; turn or cause to turn off or away | 
| aviation | n. 航空,航空学 art or science of flying; flight; aeronautics | 
| avid | a. 贪婪 greedy; eager for; marked by keen interest and enthusiasm | 
| avoidance | n. 避免 keeping away from or preventing from happening | 
| awe | n. 敬畏 mixed emotion of reverence, respect, dread, and wonder; fear, as of something evil | 
| awkwardly | ad. (见到生人)局促不安地,笨拙地 in an uncomfortable, nervous, or embarrassed way | 
| axis | n. 轴,轴心 the center around which something rotates; pivot | 
 |