assembly
加入词篮assert
assess
assess
asset
assign
assignment
assist
assistance
assistant
associate
association
assume
assumption
assure
astonish
astronomer
at
athlete
atmosphere
atom
atomic
attach
attack
attain
attempt
attend
attendance
attention
attitude
attorney
attract
attraction
attractive
attribute
attribute
auction
audience
audio
August
aunt
authentic
author
authority
auto
automate
automatic
automobile
autumn
auxiliary
available
avenue
average
avoid
await
awake
award
aware
awareness
away
awful
awkward
ax
axe
baby
bachelor
bachelor
back
back
back
background
background
backup
backward
bacon
bacteria
bad
badge
badly
bag
baggage
bake
bakery
balance
balcony
ball
ball
bamboo
ban
banana
band
bandage
bang
bank
bankrupt
banner
banquet
bar
barber
bare
