a couple of 一对，一双；几个
a good deal 许多，大量；…得多
a good(great) many大量的，许多，多
a little 一些，少许；一点儿
a lot of 大量，许多；非常
a number of若干许多
a point of view  观点，着眼点
a series of 一系列，一连串
a variety of 种种，各种
abide by 遵守(法律等)
above all 首先，尤其是
above-mentioned 上述的
(have) access to 有得到..权利,*近
according to 根据…所说；按照
account for 说明(原因)；解释；占…
adjust（oneself）to 调整以适应
adapt (oneself) to调整以适应
accuse sb. of sth. 控告(某人某事)
act on 按照…而行动
act out表演出，
add up to 合计达，总计是
add up加算，合计
admit of 容许有，有…余地
after all 毕竟，终究；虽然这样
agree on 就…达成协议决定
agree to同意，商定
agree with 同意，与…取得一致
agree with与…相一致；适合
ahead of 在…前面，先于；胜过
ahead of schedule  提前
ahead of time  提前
all but 几乎，差点；
all the while 一直地；始终
all the more 更加越发
all the same 尽管如此，仍旧
all along 始终，一直，一贯
all) at once 突然；同时；一起
all in all总的说来；头等重要的
all of a sudden 突然，冷不防
all one's life 一生，一辈子
(go)all out竭尽全力
all over到处，遍及；全部结束
all over again 再一次，重新
all right 行，可以；顺利；确实
all round (在…)周围，处处
all the same仍然，照样地
all the time 一直，始终
all the years round 一年到头
all too soon/often… 太
allow for 酌量；考虑到
allow of  容许(有…)，容得
along with 同…一道(一起)
amount to 总共达到；实际上是
and all that 诸如此类
and so (on)forth 等等
and the like 等等，以及诸如此类
and yet而，然而
allow for 考虑到，估计到；体谅
answer for 对…负责；符合…
answer sb. back  (与某人)顶嘴，回嘴
apply for提出申请(或要求等)
apply oneself to  致力于
apply to 向…申请或要求
apply sth..to把…应用于
arm in arm肩并肩
around the clock 昼夜不断地，全天地
as a matter of fact 事实上，其实
as a result结果
and vice versa 反过来也一样
anything but，决不是
nothing but 只是，只不过是 ．
apart from 除了；且不说
appeal to 要求；上诉；引起…注意
approve of 赞赏，同意；获准，认可
around the corner 在拐角处；即将到来
as a matter of course理所当然的(事)
as a result/consequence 结果；因此
as a rule通常，一般(说来)
as a whole总体上
as far as …那么远，直到；至于
as follows 如下
as for/as to/as regards 至于，关于
as good as 几乎,(实际)已经
as if 好象，仿佛
as well 也…；和
as against 相对与
as long as 只要,长达
as soon/early/quickly/easy as
possible（one can 尽早/快..
as soon as一…就…
as usual照常，照例
as well （as）也，和，
as yet到目前为止
as/so far as 就…而言；在…范围内
aside from 除…以外
ask after 问候，询问，探问
ask for 请求，要求，寻求
ask for a few days’ leave请几天假
=ask for.. days off=take a few days off
at a stretch一口气地
at a time 每一次
at times有时
at a speed of以…的速度
at all costs不惜任何代价
at all risks无论冒什么危险
at all times 一直
at all 完全，根本；到底,确实
at any cost 不惜任何代价
at any rate无论如何；
at best 充其量，至多
at ease自由自在；舒适，舒坦
at full speed以全速
at hand 在手边；在附近
at a loss 不知所措
at all/any cost(s) 不惜一切代价
at any moment 随时,马上
at first 起初；开始
at first sight 乍一看，一见就
at intervals (of) 不时，时时；每隔…
at large 一般的；普遍的；在逃；
at leisure 有空闲，闲着的；从容地，
at length/at last 最后，终于
at (the) most/least 至多／至少
at night天黑时；在夜里
at no time 决不，
at once 立刻，马上；同时
at one time同时；曾经，一度
at one's best处在最好状态
at peace处于和平(或和睦)状态
at present 目前，现在
at sb's disposal任某人处理
at the mercy of 完全受…支配，听命于
at the moment 此刻
at stake在危险中；危如累卵
at table在餐桌边，在进餐时
at the cost/expense of  以…为代价
at the latest 最迟，至迟
at the moment 此刻，目前；那时
at the same time 同时，然而，不过
at the thought/sight/sound/mention of   一(想)起…(就)
at this rate这样的话，照此速度
at work (人)在工作；忙于
attach importance to认为重要，重视
attach oneself to  依附；参加党派
at the risk of 冒…的危险
attach to 附上；贴上；使隶属
be attached to 附属于；喜爱；爱慕
attend on 照顾，侍候
attend to 处理，照料;注意,专心于