be able to 能，会
abound in 盛产，富于，充满
be about to 即将(做)
above all 首先，首要，尤其是
be absorbed in 专心致力于…
be abundant in …富于，…丰富
by accident 偶然
in accordance with 与…一致;按照，根据
according as 根据…而…
according to 根据…所说;按照
account for 说明(原因等);解释
on account of 因为，由于
on no account 决不
take into account 考虑;重视
accuse sb. of sth. 控告(某人某事)
be accustomed to 习惯于
be acquainted with 开始认识;开始了解
act for 代理
act on 按照…而行动
act out 演出
bring into action 使行动起来
put out of action 使失去效用
take action 采取行动;提出诉讼
adapt to 适应
add up 加算，合计
add up to 合计达，总计是
in addition 另外
in addition to 除…之外(还有)
be adequate for 适合
adhere to 粘附在…上;坚持
admire to do sth. (美口)很想做某事
admit of 容许有，有…余地
admit to 承认
be on the advance (物价)在上涨中
in advance 在前面;预先
in advance of 在…的前面;超过
take advantage of 趁…之机，利用
advertise for 登广告征求(寻找)某物
affect to 假装
afford to (买)得起(某物)
for ages 长期
agree on 同意，赞成
agree to 同意，商定
agree with 同意，与…取得一致
ahead of 在…前面，先于;胜过
get ahead 进步，获得成功
go ahead 前进;干吧
aim for 力争…，针对
by air 通过航空途径
in the air 在空中;未定
be alike to 与…相同，与…相似
after all 毕竟，终究;虽然这样
all along 始终，一直，一贯
all but 几乎，差一点