- ugly
- ultimately
- ultimatum
- ultraviolet
- unanimous
- uncalled-for
- unconditional
- unconscious
- undercharge
- underestimate
- underline
- underlying
- undermine
- underneath
- undertake
- underwrite
- undo
- undoubtedly
- undue
- uneasy
- unemployment
- uneven
- unfold
- ungainly
- uniform
- unify
- unilateral
- unique
- universal
- unlikely
- unravel
- unrest
- untold
- up to one's eyes in
- upbringing
- update
- upkeep
- upright
- uprising
- upset
- up-to-date
- utility
- utmost
- utterly
成人英语雅思单词单词大全〔U 〕课程包含44个英语单词词汇。