be able to do能够,会
be about to do刚要,即将
above all首先,首要,尤其是
be absorbed in sth.专心致力于…
be absorbed in doing sth.专心致力于…
be abundant in…富于,…丰富
by accident偶然,碰巧 (=by chance)
in accordance with依照,根据,与…一致
according toprep.据/照…(所说、所写);按…,视…
accuse sb. of sth.控告(某人某事)
be accustomed to习惯于,惯常的
act as(临时)担任,充当,起…作用
act on遵照…行动,奉行;作用于,影响
put sth. into action付诸实施
put sth. out of action使……停止工作或活动
take action采取行动;开始工作
adapt to适应
add up加起来;说得通
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