- under control
- under the circumstances
- under way
- up to date
- ultimate
- unanimous
- uncover
- underestimate
- undergo
- underline
- underlie
- undermine
- undertake
- undesirable
- uneasy
- unfold
- uniform
- unify
- update
- upgrade
- uphold
- upright
- uproar
- upset
- urge
- urgent
- utilize
- utter
大学英语2011考研英语核心单词单词大全〔U 〕课程包含28个英语单词词汇。