unique adj.独一无二的；独特的
The letter was written in Anne’s unique style.这封信是按安妮独特的风格写的。
universal adj.普遍的；共同的
The desire to be loved is universal.对被爱的渴望是普遍存在的。
upset v.颠覆，推翻；扰乱 adj.心烦意乱的
Any mechanical problems would upset our plans of driving across the desert.任何机械问 题都会扰乱我们驾车穿越沙漠的计划。
Mary was upset because we were going to be late.玛丽很心烦，因为我们要迟到了。
urban adj.城市的
Urban problems often stretch beyond city limits into suburbs.都市问题通常会从市区扩展到郊区。
urge v.催促；力劝，恳求
The teacher urge us to work harder to achieve high scores.老师督促我们更加努力地学习,以取得好成绩。
urgent adj.紧急的，迫切的
Janet's boss gave her some urgent work that needed to be finished in one hour.珍妮特的老板给她分配了一些紧急任务，必须在一个小时内完成。
utility n.①运用；效用②公用事业公司；公用事业设备
The utility of the rescue equipment still has to be assessed in a real emergency.这种救生设备的功用还有待在真正的紧急情况中评定。
The cost ofutilities in this building is included in my monthly rent.这栋大楼的公用事业费用包含在我每月的租金当中。
utilize v.利用
Efficient workers utilize time wisely.有效率的员工会非常明智地利用时间。
utter v.说出；发表 adj.全然的，完全的
Not a word wasuttered during the thrilling movie.在看这部惊悚电影的时候，没有人说话。
There was utter silence in the classroom.教室里异常安静。
vacant adj.空的，未被占用的
The neighborhood boys like to play baseball on that vacant lot.附近的男孩子们喜欢在那片空地上打棒球。