They undertook a big enterprise.
Take up, start, I want you to undertake all the arrangement.
Agree. He undertook to be here before midday.
Promise. Guarantee, I can undertake that you will enjoy the play.
undo un-否定 do-做 v. 松开,解开
loosen, unite, you have to undo the lace before you can take off your shoe.
取消,实效, What is done cannot be undone 覆水难收
打扰,使不安, Mention of the boy would still undo her sometimes.
Unemployed a. 失业的,没有工作的
Unemployment n. 失业
Unexpected 想不到的,意外的 unforeseen, unpredictable
With the constant change of the conditions, the outcome is not always_________.
A) favorable
B) predictable
C) dependable
D) reasonable
All members of the club must conform o its rules.
unfair a. 不公平的,不公道的
unforgettable a. 难忘的,不会忘记的
unfortunately ad. 不幸地,令人遗憾地
unify v. 统一,使一致
unanimous;unification n. 统一,单一化;
uniform n. 制服,军服a. 一致的,一律的
The earth turns around at uniform rate
A school uniform
union n. 结合,组合,联合 n. 协会,工会,联盟
They are working for the union of the two countries.
unit n. 单元,单位n. 部件,元件,装置
unite v. 统一,结合,合并v. 联合,团结
the United States/US联合国
unity n. 统一,联合n. 协调,一致
Unity is strength, unity is victory.
unintelligible a. 难理解的,难懂的
intelligent 聪明的,有才智的, intelligible 可理解的
unique a. 唯一的,独特的;n. 独一无二的事物
uni- one; ique=ic
being only one of its type
Geoffrey Chaucer occupies a unique place in English Literature.
A unique opportunity
unprecedented a 史无前例的
-ced-, -ceed-, -cess- 表示 行走、前进
ante 表示 前, con 表示 共同 , pre 表示 预先 , un 表示否定,re表示 后、回 , ex 表示 超出 , pro 表示 在前 , suc 表示 随后,inter表示在中间。antecede (先行、先于),concede (让步、勉强),precede (在先、优于),unprecedented (史无前例的),recede (撤回),secede (脱离、分开),exceed (超越、过度),proceed (前进),succeed (继续、成功),intercede (调停)
unquestionable a. 无疑的,确实的
unveil v. 除去覆盖,揭露,吐露v. 新发售
reveal, make public, disclose
责任编辑:小草