4000 Duolingo Vocabulary List

ultimate:
a. 终极的 final; being the last or concluding; fundamental; elemental; extreme

ultimatum:
n. 最后通牒 last offer; final statement of terms made by one party to another

unadorned:
a. 未装饰的,朴实的 without adornment; simple or plain; not admirable

unanimous:
a. 全体意见一致的 uniform; in complete agreement

unbridgeable:
a. 不能架桥的,不能逾越的 impassable; unable to be bridged or crossed; impossible to span

uncharted:
a. 地图上没标明的 not surveyed or investigated; not charted or recorded on a map or plan

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

unconventional:
a. 非传统的 not conforming to accepted rules or standards

unconvincing:
a. 不足以令人相信的 not such as to convince or to impress seriously

underestimate:
v. 低估,看轻 make too low an estimate of the quantity; undervalue

undergo:
v. 经历,遭受 experience; suffer; pass through

underlying:
a. 根本的,在下面的,潜在的 lying under or beneath something; basic; implicit; taking precedence; prior

undermine:
v. 破坏 weaken by wearing away base or foundation; injure or impair; dig a mine or tunnel beneath

underscore:
v. 强调 draw a mark or line under; emphasize; stress

undeserved:
a. 不应得的,不该受的 not deserved or earned; not merited; unjustifiable or unfair

undifferentiated:
a. 无差别的,无显著特征的 not differentiated; without clear distinctive characters

undisturbed:
a. 没受干扰的,安静的 peaceful without disturbance; free from interruption

undoubtedly:
ad. 毋庸置疑地,确凿地 unquestionably; without doubt; certainly

uneasy:
a. 不舒适的,忧虑的,着急的 not easy; difficult; restless; disturbed by pain, anxiety