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