3000 TOEIC Vocabulary

abandon: 
n. Syn. relinquish
(没有约束,放任情绪) lacking restraint or control; feeling of extreme emotional intensity; unbounded enthusiasm

abbreviation: 
n.
(缩写,缩写词) shortening something by omitting parts of it

abnormal: 
a. Syn. anomalous; unusual
(反常的,异常的,变态的) unusual; not typical; not normal

abort: 
v. Syn. failure; terminate
(中止计划(任务)) stop; terminate before completion; terminate a pregnancy

abortion: 
n.
(流产,流产儿,不足月婴儿,失败,夭折) termination of pregnancy; failure of a plan

abrasion: 
n. Syn. scratch; friction
(磨(擦)破,擦伤处(尤指皮肤因磨擦等造成者).表面磨损) scratch; friction

abrasive: 
a.
(摩擦的,粗糙的,研磨剂) rubbing away; tending to grind down

abrupt: 
a. Syn. sudden; unforeseen
(突然的,意外的) broken off; very steep; having sudden transitions from one subject to another

absence: 
n.
(缺少,不在,缺席) state of being absent; state of being away

absolutely: 
ad. Syn. utterly; definitely
(完全地,绝对地) utterly; definitely

absorb: 
v. Syn. monopolize; receive
(吸收,合并) assimilate or incorporate; suck or drink up; occupy full attention

abstract: 
a. Syn. theoretical; abstruse
(抽象的) theoretical; not concrete; not applied or practical; difficult to understand

absurd: 
a. Syn. preposterous; ridiculous; foolish
(荒谬的,可笑的) preposterous; ridiculously incongruous or unreasonable; foolish

abuse: 
n. Syn. misuse
(滥用,虐待) improper use or handling; misuse

academic: 
a. Syn. scholarly; collegiate; theoretical
(学术的) related to school; not practical or directly useful; relating to scholarly organization; based on formal education

academy: 
n.
(学会,学院,高等专科学校) school for special instruction; society of scholars, scientists, or artists

access: 
n. Syn. approach
(接触,接近(的机会)) approach; entry; entrance

accessory: 
n. Syn. adjunct; appendage
(附件) additional object; useful but not essential thing; subordinate or supplementary item

accidental: 
a. Syn. unexpected; unforeseen
(意外的,偶然的) unexpected; unforeseen

accommodate: 
v. Syn. adapt; oblige
(招待,食宿,适应) do a favor or service for; provide for; supply with; make suitable; adapt; allow for

accompany: 
v.
(陪伴,伴随,伴奏) travel with; be associated with

accomplished: 
a. Syn. skilled; experienced
(精通的,熟练的) skilled; experienced; having many social graces; polished or refined

account: 
n. Syn. report; description
(说明,解释) narrative or record of events; reason given for a particular action or event

accountable: 
a.
(有责任的,应负责做出解释的) liable to being called to account; answerable; responsible; something that can be explained

accountant: 
n.
(会计员,会计师) one who maintains and audits business accounts

accounting: 
n.
(会计学) system that provides quantitative information about finances

accurate: 
a. Syn. precise; correct
(准确的,正确的) capable of providing a correct reading or measurement; performing with care and precision

accuse: 
v. Syn. blame; condemn
(指责,归咎) blame; condemn

accused: 
n.
(被控告的,被告) defendant or defendants in a criminal case; person charged with an offense

achieve: 
v. Syn. accomplish; fulfill
(完成,实现) gain with effort; accomplish; fulfill

acid: 
n.
(酸) sour; water-soluble compounds having a sour taste; quality of being sarcastic, bitter, or scornful

acidic: 
a.
(酸的,酸性的) tasting sour like acid; being or containing an acid

acknowledge: 
v. Syn. recognize; admit
(认可,承认) declare to be true or admit; express obligation, thanks

acquire: 
v. Syn. obtain; gain
(获取) gain through experience or effort; gain possession of; locate with tracking system

acquisition: 
n. Syn. acquirement; attainment
(获得) act of contracting or assuming or acquiring possession of something

across: 
ad.
(横过,到对面,在对面) from side to side; crosswise, or in a direction opposed to the length

activate: 
v. Syn. encourage; stimulate
(刺激,使活动) make active or more active; stimulate; make radioactive

actual: 
a. Syn. true; real
(实际的,现行的) true; real; being, existing, or acting at the present moment; current

actually: 
ad. Syn. truly; really
(实际上,事实上) truly; really; in fact

acupuncture: 
n.
(针刺,针灸) treatment of pain or disease by inserting the tips of needles at specific points on the skin

acute: 
a. Syn. keen; sharp
(精明,敏锐,聪明) quickly perceptive; keen; having a sharp point or tip; extremely sharp or severe

adapt: 
v. Syn. alter; modify
(改变) make fit for; change to suit a new purpose

addict: 
v.
(使上瘾,使沉溺) cause someone to become dependent; indulge in; be devoted 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

adequate: 
a. Syn. sufficient; enough
(足够的,充实的) sufficient; enough to meet a purpose

adhere: 
v. Syn. stick; bond
(黏着) stick fast; stick to firmly; be compatible or in accordance with

adhesive: 
a. Syn. sticky; glutinous
(粘连的,不易取下或分离的) sticky; glutinous; tending to persist

adjunct: 
n. Syn. addition; accessory
(无用的附加物) something added on or attached generally nonessential or inferior

adjust: 
v. Syn. adapt; regulate
(调整,使适于) adapt; regulate

administer: 
v. Syn. govern; supervise
(管理) govern; supervise; give or apply medications

administration: 
n. Syn. management; supervision; executive
(管理,行政管理,政府,行政机关) management; supervision; people who are in charge for management; activity of government for powers and duties

admission: 
n. Syn. admittance; entrance; access
(准许进入,准许加入,入场费,会费,承认,招认) act or practice of admitting; power or permission to enter

admit: 
v.
(准许进入) permit to enter; receive; provide the right or a means of entrance to

adopt: 
v. Syn. accept
(采用,采纳) accept; take on; raise; take into one's family

adore: 
v. Syn. idolize; adorn
(崇拜,热爱) worship with profound reverence; pay divine honors to; regard with the utmost esteem and affection

adult: 
n.
(成年的,已成人的,成年人) one who has attained maturity or legal age; fully grown

adventure: 
n. Syn. risk; venture
(冒险经历) something happens without design; chance; hazard; risk; danger

adventurous: 
a. Syn. valiant; venturesome
(喜欢冒险的,敢做敢为的) valiant; venturesome; inclined or willing to incur hazard or engage in adventures

adversity: 
n. Syn. poverty; misfortune
(贫困,不幸) state of misfortune, hardship, or affliction; misfortune

advertise: 
v. Syn. notify
(登广告,做广告,广告商) give notice to; inform or apprise; make known; give public notice of

advocate: 
v. Syn. urge; support
(辩护,推广) speak, plead, or argue in favour of; plead for; push for something

aerodynamics: 
n.
(空气动力学) study of how objects move through the air or water

affect: 
v.
(影响,假装) have an emotional or cognitive impact upon

affected: 
a. Syn. artificial; pretended
(假的,做作的) speaking or behaving in artificial way; emotionally stirred or moved; infected or attacked

affection: 
n. Syn. fondness; love
(友爱,挚爱,情爱) fondness; tender feeling toward another; fondness

affective: 
a. Syn. sentimental
(感情的,表达感情的) sentimental; emotional; emotionally charged

afford: 
v. Syn. pay; risk
(付得起,冒险做) pay; provide; have the financial means for; bear the cost of

agency: 
n.
(代理,代办,代理处,经销处,社,机构,作用,力量) a business that serves other businesses; an administrative unit of government

agenda: 
n. Syn. schedule; calendar
(议程) items of business at a meeting; list or program of things to be done or considered

aggravate: 
v. Syn. worsen; exacerbate
(使恶化,使加重) worsen; make worse or more troublesome

aggregation: 
n.
(集合,群体) several things grouped together or considered as a whole

aggressive: 
a.
(强有力的,坚持己见的) making assaults; unjustly attacking; combative; hostile; tending to spread quickly

agony: 
n.
(极大痛苦) 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

aid: 
n.
(助手) person or thing that promotes or helps in something done; helper; assistant

ailment: 
n. Syn. sickness; illness; affliction
(疾病(尤指轻病,小病)) sickness; illness; affliction

air: 
v.
(空气,空中) be broadcast on television or radio

aircraft: 
n.
(飞行器,飞机,飞艇) vehicle that can fly, such as an airplane, helicopter, balloon

aisle: 
n.
((教堂的)走廊,耳堂,(剧院观众席间的)狭长过道) passageway between rows of seats, as in an auditorium or an airplane; wing of a building

alarm: 
n.
(警报,警报器,警铃,闹钟,惊慌) any sound or information intended to give notice of approaching danger

album: 
n.
(影集,集邮簿,慢转唱片) a list of names; a register for visitors; a blank book, in which to insert autographs sketches, memorial writing of friends, photographs

alert: 
n.
(机敏的) warning serves; alarm; condition of heightened watchfulness or preparation for action

alien: 
a. Syn. strange; unfamiliar; foreign
(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. Syn. estrange; transfer; separate
(孤立,树敌) cause to become unfriendly or hostile; transfer property or ownership; isolate or dissociate emotionally

alike: 
a. Syn. similar; resembling
(相同的,相似的) similar; in the same manner or to the same degree

allegation: 
n.
(宣称,主张,断言) suggestion without proof that someone has done something wrong

allegiance: 
n. Syn. loyalty; fidelity
(忠诚) loyalty to a nation, sovereign, or cause; fidelity to any person or thing; devotion

alliance: 
n.
(结盟,同盟,联盟) state of being allied; act of allying or uniting; a union or connection of interests between families, states, parties

alliteration: 
n.
(头韵) repetition of beginning sound in poetry

allowance: 
n. Syn. authorization; permission
(津贴,补助,认同,宽容,份额) approval; act of allowing, granting, or admitting

ally: 
n. Syn. confederate; partner; collaborator
(联盟,同盟者) confederate; partner; collaborator

alone: 
a. Syn. solitary; by oneself
(单独的) solitary; by oneself

along: 
ad.
(沿着,向前,共同,一起,始终) by the length; in a line with the length; onward; forward; in company; together

alongside: 
ad.
(横靠着,沿着,傍着,横靠,傍着) along or by the side; side by side with

alter: 
v. Syn. modify; change; convert
(改变,修改) modify; cause to change; make different; convert

alteration: 
n. Syn. renovation; change
(变更,改造) passage from one form or state to another; change

alternate: 
a. Syn. substitute
(交替的,轮流的) happening or following in turns; succeeding each other continuously; substitute

alternation: 
n.
(交替,轮流) successive change from one thing or state to another and back again

alternative: 
a.
(另一可选的,另外的) one of two or more things, ideas or courses of action that may be used; option; choice

altitude: 
n. Syn. elevation; height
(高度) elevation especially above sea level; height

aluminum: 
n.
(铝) silvery ductile metallic element

amateur: 
a. Syn. nonprofessional; inexpert
(业余的) nonprofessional; lacking the skill of a professional, as in an art

amaze: 
v. Syn. stun; astonish; shock
(使吃惊,使惊叹) astonish; affect with wonder

amazement: 
n. Syn. wonder; surprise
(惊愕,惊异) wonder; state of extreme surprise or wonder; astonishment

ambassador: 
n.
(大使,使者) authorized messenger or representative

ambitious: 
a. Syn. aspiring; enterprising
(有雄心的,渴望成功的) aspiring; having a strong desire for success or achievement

ambivalence: 
n.
(矛盾的观点或情绪) state of having contradictory or conflicting emotional attitudes, such as love and hate

ambulance: 
n.
(救护车,野外医院) field hospital organized as to follow an army in its movements; wagon for conveying the wounded to hospital

amenable: 
a. Syn. responsible; accountable
(有服从义务的,随时服从的) responsive to advice or suggestion; responsible to higher authority; willing to comply with; agreeable

amends: 
n.
(赔偿,补偿) compensation for a loss or injury; recompense; reparation

ammunition: 
n. Syn. weapon
(军火,弹药) military stores or provisions; articles used in weapons, as powder, balls, shot, shells

amount: 
n. Syn. quantity; sum
(量,总合) total of two or more quantities; aggregate; sum

ample: 
a. Syn. abundant
(丰富的,富足的) more than enough in size or scope or capacity; fairly large

amuse: 
v. Syn. absorb; distract; bewilder
(使欢乐,逗…笑,娱乐,消遣) occupy in an agreeable, pleasing, or entertaining fashion; cause laughter or be funny; delude or deceive

analogy: 
n. Syn. similarity; parallelism
(类比,相似) similarity in some respects; comparison based on similarity

analysis: 
n. Syn. study; investigation
(分析,分析报告) study; investigation; process of breaking down a substance into its constituent parts

anchor: 
v. Syn. fasten
(固定,锚) secure or fasten firmly; be fixed in place; narrate or coordinate

anecdote: 
n. Syn. episode; story
(奇闻轶事) short account of amusing or interesting event; short narrative; secret story of history or biography

anesthetic: 
n.
(麻醉药) substance that causes loss of sensation; producing temporary loss or impairment of feeling

angular: 
a.
(有尖角的,瘦骨嶙峋的) sharp-cornered; consisting of an angle or angles; stiff in manner

anniversary: 
a.
(周年,周年纪念) annual; yearly; annual return of the day on which any notable event took place

annoy: 
v. Syn. disturb; irritate
(使恼怒,打扰) disturb, especially by minor irritations; irritate

annual: 
a.
(每年的) occurring or payable every year

annually: 
ad. Syn. yearly
(一年一次,每年) yearly; each year; returning every year; year by year

anonymous: 
a. Syn. unknown; nameless
(匿名的) having no name; having unknown or unacknowledged name

anthem: 
n. Syn. song; hymn
(圣歌,赞美诗) song of praise or patriotism; song of devotion or loyalty

anthropology: 
n.
(人类学) social science that studies origins and social relationships of human beings

antibiotic: 
a. Syn. antibacterial
(抗菌的,抗生的) of or relating to chemical substance that kills microorganisms and cures infections

anticipate: 
v. Syn. expect; predict
(预期,预料) act in advance of; deal with ahead of time; predict

anticipation: 
n. Syn. expectation
(期望,预料) something expected; pleasurable expectation; wishing with confidence

antiquated: 
a. Syn. obsolete; antique; aged
(过时的,陈旧的) too old to be fashionable, suitable, or useful; obsolete; aged

antique: 
n. Syn. relic; curio
(古董) any furniture old and valuable; out of fashion

antiquity: 
n. Syn. relic
(古迹,古物) ancient times, especially the times preceding the Middle Ages; extreme oldness

antiseptic: 
n. Syn. bactericide; germicide
(抗菌物) substance that prevents infection; substance that restricts the growth of disease-causing microorganisms

anxiety: 
n.
(忧虑,焦虑,不安) concern something in state of painful uneasiness; state of restlessness and agitation

anyhow: 
ad.
(无论如何,不管怎样) in any way or manner whatever; at any rate; in any event

apart: 
ad.
(分开,离开,拆开,个别,单独) separately, in regard to space or company; in a state of separation as to place; aside

apparent: 
a. Syn. visible
(明显的,明白的,外表的,表面上的) capable of being seen, or easily seen; open to view; visible to eye

appeal: 
n. Syn. attraction; charm
(吸引力) attraction; charm; attract; fascinate; challenge

appendix: 
n. Syn. appendage; adjunct; concomitant
(阑尾,附录) something appended or added

appetite: 
n. Syn. desire
(胃口,食欲) instinctive physical desire, especially one for food or drink

applaud: 
v. Syn. clap; acclaim
(喝彩,欢呼) acclaim; express approval, especially by clapping the hands

apply: 
v. Syn. exert
(应用,适用) exert; put into service; avail oneself to;

appointment: 
n. Syn. arrangement
(指定,约会) act of putting a person into a non-elective position; arrangement

appreciate: 
v. Syn. admire; value
(感激,增值,赏识) be thankful for; increase in worth; be thoroughly conscious of

apprentice: 
n.
(学徒) works for an expert to learn a trade; beginner; learner

approach: 
n. Syn. access; method
(方法) access; method

appropriate: 
v. Syn. acquire; allocate
(获得,挪用,据为己有) acquire; take possession of for one's own use; set apart for specific use

approval: 
n. Syn. sanction; endorsement
(赞成,正式批准) official approbation; endorsement; act of approving

approve: 
v. Syn. ratify
(批准) ratify; consider right or good; think or speak favorably of

aptitude: 
n. Syn. intelligence; talent
(能力,才能) inherent ability; quickness in learning and understanding

aquamarine: 
a.
(绿玉,碧绿色) of bluish-green colour; of pale blue to light greenish blue

aquarium: 
n.
(水族馆) tank or pool or bowl filled with water for keeping live fish and underwater animals

arboreal: 
a.
(树栖的,树的) tree-dwelling; treelike; living in trees

arc: 
n.
(弧形,拱形) continuous portion of a circle; something curved in shape

arch: 
n.
(拱,脚弓,使弯成拱,使成拱形) any part of a curved line

archaeology: 
n.
(考古学) study of artifacts and relics of early mankind

architect: 
n.
(建筑师) one who designs and supervises the construction of buildings or other large structures

archives: 
n.
(档案,档案馆) public records; place where public records are kept

area: 
n.
(范围,区域,地区,面积,领域) plane surface, as of the floor of a room; open space in a building; the enclosed space; extent; scope; range

arena: 
n.
(竞技场,舞台) playing field where sports events take place; large structure for open-air sports or entertainments

argue: 
v.
(辩论,表明,争论,争吵) invent and offer reasons to support or overthrow a proposition, opinion, or measure; debate

arise: 
v. Syn. spring
(出现,发生,起来,站起) come up from a lower to a higher position; come above the horizon; spring up; come into action

arithmetic: 
n.
(算数) theory of numerical calculations

armor: 
n. Syn. shield
(装甲,装甲车) shield; defensive covering, as of metal, wood, or leather, worn to protect the body against weapons

arms: 
n. Syn. weapon
(武器,兵种) weapons considered collectively; official symbols of a family

array: 
v. Syn. marshal
(排列,整理) set out for display or use; place in orderly arrangement

arrogant: 
a. Syn. overbearing; lofty
(傲慢的,自大的,傲慢) arising from feeling or assumption of one's superiority toward others

arsenal: 
n. Syn. armory
(军火库) storage place for military equipment; stock of weapons

artery: 
n.
(动脉,干线,命脉) one of the vessels or tubes which carry either venous or arterial blood from the heart; major transit corridor

article: 
n. Syn. essay; editorial
(论文,文章) essay; editorial; individual thing or element of a class

articulate: 
a. Syn. effective; distinct
(有效的,清晰的) expressing oneself easily in clear and effective language

artificial: 
a. Syn. unreal
(人造的,人工的) made by humans; produced rather than natural.

artillery: 
n.
(大炮,炮兵) large weapons, such as cannon and missile launchers operated by crews; branch of army in use of large weapons

ascent: 
n.
(攀登,上升) upward slope or grade; movement upward

ashamed: 
a.
(羞愧的,惭愧的,不好意思) affected by shame; abashed or confused by guilt

aside: 
ad.
(在旁边,向旁边,撇开) on, or to, one side; out of a straight line, course, or direction; at a little distance from the rest

aspect: 
n. Syn. respect; facet
((问题的)方面,(事物的)一部分) distinct feature or element in a problem; a way in which something can be viewed by the mind

aspirin: 
n.
(阿斯匹林) white crystalline compound drug to relieve pain and reduce fever and inflammation

assassination: 
n.
(暗杀) act of assassinating; killing by treacherous violence; murder of public figure by surprise attack

assault: 
n. Syn. attack; onslaught
((武力)袭击,(口头)攻击) attack; onslaught

assemble: 
v. Syn. gather
(集合,装配) put together; bring or call together into a group or whole

assess: 
v. Syn. estimate; judge
(估计,估算,评估,评价) estimate value; judge worth of something

asset: 
n. Syn. properties; advantage
(财产,资产) properties; advantage; useful or valuable quality

assign: 
v. Syn. appoint; allot
(分配,指定,让与) appoint; allot; make over; point out authoritatively or exactly

assignment: 
n. Syn. task; job
(任务,作业) task given to students; job; distribution; appointment

assist: 
v. Syn. help
(援助,帮助) give help or support to, especially as a subordinate

associate: 
v. Syn. pertain; connect
(关联,联合) connect or join together; combine

association: 
n. Syn. alliance; connection
(联盟,联合,协会) connection, whether of persons of things; union of persons in a company or society for some particular purpose

assorted: 
a. Syn. varied; miscellaneous
(各式各样的,多样混合的) varied; miscellaneous

assortment: 
n. Syn. variety; conglomerate
(各类物品的聚集,混合物) variety; collection containing a variety of sorts of things

assume: 
v. Syn. suppose; presume
(假定,设想) suppose; presume; take on; bear

assumption: 
n. Syn. hypothesis; supposition
(假定,设想,采取) something taken for accepted as true without proof; taking over or taking possession of

assurance: 
n. Syn. certainty; confidence; insurance; guaranty
(担保,保证,确定,自信) promise or pledge; certainty; self-confidence; freedom from doubt

assure: 
v. Syn. solidify; guarantee; convince
(确保,向…保证,使确信) solidify; guarantee; convince

astonish: 
v. Syn. surprise; shock
(使惊讶) surprise; shock

astounding: 
a.
(令人吃惊的) surprising; shocking

astronomy: 
n.
(天文学) branch of physics that studies celestial bodies and universe as a whole

astute: 
a. Syn. shrewd
(聪明,敏锐) wise or keen; shrewd; with sharp intelligence

asylum: 
n. Syn. protection
(庇护所) place of refuge or shelter; protection

asymmetrical: 
a. Syn. unbalanced; uneven
(不均匀的,不对称的) unbalanced; uneven

athlete: 
n.
(运动员) sports man; one who contended for prize in public games

atlas: 
n.
(地图集) a bound volume of maps, charts, or tables

atomization: 
n.
(原子化,雾化) act of reducing to atoms, or very minute particles

atrophy: 
n. Syn. shrinkage
(枯萎,萎缩,衰退,结束) wasting away; decrease in size; reduction in the functionality of an organ caused by disease

attach: 
v. Syn. fasten; annex
(系,缚,附加) fasten; annex; be in contact with

attack: 
n.
(进攻,攻击,抨击,侵袭) offensive move; expression of strong criticism; hostile comment

attempt: 
n. Syn. try; endeavor; effort
(尝试) action of trying at something

attend: 
v.
(参加,入学) be present at; go to; take care of; tend

attendance: 
n.
(出席,出席的人数) act of being present

attendant: 
n. Syn. aide; servant
(侍者,护理人员) aide; servant; accompanying; person who participates in a meeting

attitude: 
n.
(姿势,态度,看法,意见) posture, action, or disposition of a figure or a statue

attorney: 
n. Syn. lawyer
(代理人,辩护律师) lawyer; one who is appointed by another to act in his place or stead; proxy

attractive: 
a. Syn. appealing; pleasing; inviting; intriguing; tempting
(吸引人的,有魅力的) appealing; pleasing; inviting; tempting

auction: 
n.
(拍卖) public sale of property to the highest bidder

audience: 
n. Syn. spectator; viewer
(观众) a group of people within hearing; crowd seeing a stage performance

audit: 
n.
(核算,稽核) examination of accounts; adjustment or correction of accounts

auditorium: 
n.
(听众席,观众席) area of theater or concert hall where audience sits

aurora: 
n.
(极光) the first light of day; an atmospheric phenomenon consisting of bands of light caused by charged solar particles following the earth's magnetic lines of force

authentic: 
a. Syn. genuine; real; valid; trustworthy
(真的,可靠的,确实的) not counterfeit or copied; valid; trustworthy

author: 
n.
(作者,创作者,创始者) beginner, former, or first mover of anything; creator; originator; one who composes or writes book or composer

authority: 
n. Syn. jurisdiction; power
(权力,权限,权威人士) jurisdiction; power to enforce laws, exact obedience, command, determine, or judge; government

authorize: 
v. Syn. empower; sanction
(授权,批准) empower; give permission for; sanction

automatic: 
a. Syn. automated; mechanized; involuntary
(自动(化)的,无意识的,机械的) mechanized; operating with minimal human intervention; independent of external control

automobile: 
n.
(汽车,小汽车) self-propelled vehicle suitable for use on street or roadway

autonomous: 
a.
(自治) self-governing; not controlled by others or by outside forces; independent

available: 
a. Syn. free
(自由的,有空的) convenient for use or disposal; not busy, free; obtainable; accessible

avalanche: 
n.
(雪崩) great mass of falling snow and ice

avenue: 
n.
(林荫道,大街) way or opening for entrance or exit place; passage by which a place may be reached; broad street

average: 
a. Syn. typical; mediocre
(一般的,通常的,平庸的) typical; mean; achieve or reach on average

averse: 
a. Syn. reluctant; disinclined; unwilling
(反对的) reluctant; disinclined; turned away or backward; unwilling

aviator: 
n.
(飞行员,飞行家) someone who operates an aircraft

avoid: 
v. Syn. shun; prevent
(躲避,规避) shield away from; prevent

aware: 
a.
(知道的,明白的) knowing; having knowledge or cognizance

awful: 
a. Syn. terrible
(可怕的,非常坏的,使人敬畏的) causing fear, dread, or terror; extremely bad or unpleasant; terrible

awkward: 
a. Syn. clumsy; inept
(笨拙的,不灵活的) difficult to handle or manage

axis: 
n. Syn. shaft; pivot
(轴,轴心) the center around which something rotates; pivot