be able to 能，会
abound in 盛产，富于，充满
be about to 即将
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;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
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
be adequate for 适合