ugly:
a.
(难看的,丑陋的,令人讨厌的) offensive to the sight; contrary to beauty; disagreeable aspect; unsightly | ultimate:
a. Syn. final; fundamental; extreme
(终极的) final; being the last or concluding; fundamental; elemental; extreme |
ultimately:
ad.
(最后,最终) as final consequence; at last; in the end | ultimatum:
n.
(最后通牒) last offer; final statement of terms made by one party to another |
ultrasonic:
a. Syn. supersonic
(超音速的,超声(波)的) supersonic; higher in frequency than the range of sound perceptible to the human ear | ultraviolet:
a.
(紫外线的) wave lengths shorter than light but longer than X rays |
unanimous:
a. Syn. uniform; agreed
(全体意见一致的) uniform; in complete agreement | unbearable:
a. Syn. unendurable; intolerable
(无法忍受的,承受不住的) unendurable; so unpleasant, distasteful, or painful as to be intolerable |
unbridled:
a. Syn. violent
(放肆的,肆虐的) violent; not restrained or controlled | unbroken:
a. Syn. uninterrupted; intact
(完整的,持续的) continuous, without interruption; intact |
unconditional:
a.
(无条件的,无限制的,绝对的) made without condition; absolute; unreserved | unconscious:
a.
(失去知觉的,无意的,潜意识) lacking awareness; senseless; unaware |
uncover:
v. Syn. reveal; expose; disclose
(发现,揭示) remove the cover from; expose; disclose | underestimate:
v. Syn. undervalue
(低估,看轻) make too low an estimate of the quantity; undervalue |
undergraduate:
n.
((尚未取得学位的)大学生) university student who has not yet received a first degree | underground:
a. Syn. subterranean; buried
(地下的,地面下的) under the level of the ground; buried |
underlying:
a. Syn. fundamental; implicit
(根本的,在下面的,潜在的) lying under or beneath something; basic; implicit; taking precedence; prior | undermine:
v. Syn. weaken
(破坏) weaken by wearing away base or foundation; injure or impair; dig a mine or tunnel beneath |
underneath:
ad.
(在下面) under or below an object or a surface; lower down on the page | undertake:
v. Syn. embark; assume
(从事,承担) take on; embark on; assume |
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