容易见到“介词+名词/代词”短语
as a matter of fact 其实,事实
as a result结果,因此
as a rule一般
at a time 每次,一次
at all events 无论怎么样
at any rate无论怎么样,至少
at first sight 乍一看,初看着
at first起初
at hand 在手边,在附近
at heart 在内心;实质上
at home 在家,在国内
at last终于
at least至少
at length最后,详细地
at no time 从不,决不
at once立刻
at one time 同时,过去,以前曾
at present 现在,目前
at the moment 目前,此刻
by accidence/chance偶然
by all means 无论怎么样,一定
by hand 用手
by heart 牢记,凭记忆
by means of 借用于,用
by mistake 错误地
by no means 决不
by oneself 一个人地
by reason of 因为
by the way顺便说
for (the) purpose of 为了
for a moment 一会儿,一会儿
for a while一会儿
for example比如
for instance 比如,举例说
for one thing 第一,一则
for oneself为了自己
for the moment 目前,暂时
for the present现在,暂时
in (the) future 以后,以后
in a hurry 匆忙地,立即
in a moment 立刻,立刻
in a sense从某种意义上说
in addition 另外
in any event无论怎么样