be able to 能，会

abound in 盛产，富于，充满

be about to 即将(做)

above all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)

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

all in all 总的说来;头等重要的

all out 竭尽全力

all over 到处，遍及;全部结束

all right 行，可以;顺利;确实

at all 完全，根本;到底

in all 总共，共计

not at all 根本不;一点也不

allow for 考虑到，估计到;体谅

allow of 容许(有…)，容得

leave alone 听其自然，不要去管

along with 同…一道(一起)

amount to 总共达到;实际上是

feel amused at 以…自娱，逗…笑

and all that 诸如此类

and so forth 等等，如此等等

and that 而且

and what not 诸如此类，等等

and then 于是，然后

one after another 一个接一个地，依次地

one another 互相地

answer sb. back (与某人)顶嘴，回嘴

answer for 对…负责;符合…

answer up 应对迅速

at any rate 不管怎样，反正

if any 若有的话

in any case 不管怎样

any longer 再

any more 再;较多些

anything but 除…以外任何事(物)

apart from 除…之外(别无)

appeal to 上诉

apply for 提出申请(或要求等)

apply...to 把…应用于

apply oneself to 致力于大学英语四级分值

approve of 赞成，满意

arm in arm 手挽手地

under arms 在备战状态中

up in arms 起来进行武装斗争

arrive at 到达(某地)

as a rule 通常，一般(说来)

as...as... 象，如同，与…一样

not as...as... 不如…那样

as for as 就…而论，据…

as for 至于，就…方面说

as good as 几乎(实际)已经

as if 好象，仿佛

as long as 只要

as to 至于，关于

as well 也，又

as well as (除…之外)也，既…又

ay as well 还是…的好

aside from (美)除…以外

ask after 询问，问候

ask for 请求，要求，寻求

assist in 帮助(做某事)