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(单词翻译:双击或拖选)
unfold
unify
unique
unity
universe
update
upgrade
uphold
upright
urban
urge
utilise
utmost
vacant
vain
valid
valve
van
variation
variety
vary
vast
vegetation
vihicle
veil
vein
velocity
velvet
vent
ventilate
venture
verbal
verdict
verge
verify
versatile
verse
version
versus
vertical
veto
vice
vicinity
vicious
victim
vigorous
violate
violent
virgin
virtual
virtue
visa
vision
visualize
vital
vivid
vocal
vocational
void
volume
voluntary
volunteer
vulgar
vulnerable
wallet
ward
wardrobe
warehouse
warfare
warrant
watertight
watt
wave
wax
wealthy
weapon
weary
web
wedge
weird
weld
whereas
whereby
whirl
withdraw
withhold
witness
worthwhile
worthy
wreck
wrench
wretched
wrinkle
yacht
yell
yield
zinc