U
universal a.普遍的
utilize v.利用
underestimate v.低估
undermine v.暗中破坏
undergo v.经历~ great changes
underlying a.潜在的
uphold v.支持~ world peace
V
variation n.变动> the ~ in temperature
virtually ad.实际上
verge n.边缘=brink> on the verge of bankruptcy
versatile a.多才多艺的
visa n.签证
visualize v.设想
vulgar a.粗俗的
vulnerable a.易受伤的
W
wretched a.难过的
warfare n.战争
weary a.疲劳的
wrinkle v.起皱