uncover 揭开，揭露 ～ a dish
of food
underestimate低估 ～ the difficulties of the task
undergo 经历，遭受，忍受
～ much suffering
underlie 位于……之下 Many facts ～ my decision
undermine 在……下挖
～ a wall
undertake 着手做，
从事 ～ an attack
undesirable 不合意的，不受欢迎的 The drug has ～ side effects
uneasy 心神不宁的，不安宁的 be ～uneasy about the future
unfold 展开，打开
～ a newspaper
uniform 不变的，相同的，均匀，统一的 a ～ temperature
unify 使成一体，统一 become a unified nation
update 更新，使现代化
～a textbook
upgrade 提高，使升级，改善
～ products and services
uphold 举起，高举 He upheld his clenched hand
upright 挺直的，垂直的 an ～ seat
uproar 骚乱，骚动The public ～ over unclear-radiation hazards
continues to mount
upset 弄翻，打翻 I’ve ～ a tin of
paint on the carpet
up-to-date 时新的，新式的，现代化的They are ～ on recent developments in the world
computer industry
urge 推进，鼓励 The president ,～d on by his staff, has
decided to attend the talks
urgent 紧迫的，紧要的 He left the country on ～ business
utilize 利用
～ solar energy
utter 发出（声音等），说，吐露
～ the truth
V
vacant 未被占用的 a ～ seat in a bus
vague 含糊的，不明确的，模糊的 a ～ answer
vain 徒劳的，无效的
～ efforts
valid 有根据的 a ～ excuse
versatile 多才多艺的 a ～ man
versus 诉讼，竞赛等中以……为对手 The match tonight is China ～ Japan
vertical 垂直的，立式的 a ～ engine
veto 否决，否决权，否决权的行使 The rest of the committee could not accept the ～
vibrate 使震动，使摆动 His heavy footsteps upstairs made the old house ～
vicious 邪恶的，恶毒的，凶残的 lead a ～ life
vigor 体力，精力，活力 in the ～ of manhood
violate 违反，违背
～ the traffic regulations
virtual 实际上的，事实上的 the ～ manager of the business
virtue 美德，德行 Among her many ～s are loyalty ,courage, and
truthfulness
visible 看得见的，可见的 a ship barely ～ on the horizon
vision 视力，视觉
～ care
vital 有生命力的 The heart is a ～ organ
vivid 鲜艳的 the ～ green of leaves in spring
void 空的 a ～ space
volunteer志愿者，自愿参加者 Are there any ～s for
a swim?
vote 投票，表决 bring sth to a vote
W
wage 工资，报酬 What is your weekly ～?
wander漫步，徘徊 He ～ed home
ward 病房 a 4-bed ～
warrant授权，批准，正当理由，根据 He had no ～ for
his action
waterproof不透水的，防水的 ～ material
weary疲倦的，疲劳的 a ～ look
weave织，编，编制 ～ cloth
wedge楔子，三角木 Please put a ～ in the
door so that it will stay open
weed 杂草，野草My garden is running to ～s
weep 哭泣，流泪
～ for one’s failure
weigh称……重量，称～ oneself on the scales
weld 焊接，煅接 It takes speed to ～ steel at this heat
whirl旋转，急转 The couples ～ed round the
dance floor
whisper低语，耳语，轻声说 ～ to sb
whistle吹口哨，鸣笛 The train ～d
whitewash粉饰
wholesome有益于健康的 ～ surroundings
wicked坏的，邪恶的，淘气的，恶作剧的 ～ habits
wind 绕，缠The snake wound around a branch
wire 金属丝，金属线steel ～
withstand经受，承受 ～hardships
witness目击者，见证人a ～ of the accident
wonder奇迹 the Seven Wonders of the World in ancient times
worship崇拜，崇敬 the ～ of the dollar
wrap 包，裹
～ oneself in a blanket
wreck失事，遇难 a train ～
wrench扳手 He is a ～ .
wrinkle皱，皱纹 He will wore the ～s of
anxiety on his forehead.
Xerox静电复印（法），静电复印件，静电复印机 Make me a ～of this report.
Y
yield生产，产生，带来 This orchard ～s apples
and pears.
Z
zeal 热心，热忱，热情 a man of ～
zigzag之字形的，弯曲的 a ～ road