at intervals 不时,每隔...
at large 大多数,未被捕获的
at least 至少
at last 终于
at length 最终,终于
at most 至多,不超过
at no time 从不,决不
by accident 偶然
at one time 曾经,一度;同时
at present 目前,现在
at sb's disposal 任...处理
at the cost of 以...为代价
at the mercy of 任凭...摆布
at the moment 此刻,目前
at this rate 照此速度
at times 有时,间或
back and forth 来回地,反复地
back of 在...后面
before long 不久以后
beside point 离题的,不相干的
beyond question 毫无疑问
by air 通过航空途径
by all means 尽一切办法,务必
by and by 不久,迟早
by chance 偶然,碰巧
by far 最,...得多
by hand 用手,用体力
by itself 自动地,独自地
by means of 用,依靠
by mistake 错误地,无意地
by no means 决不,并没有
by oneself 单独地,独自地
by reason of 由于
by the way 顺便说说
by virtue of 借助,由于
by way of 经由,通过...方法
due to 由于,因为
each other 互相
even if/though 即使,虽然
ever so 非常,极其
every now and then 时而,偶尔
every other 每隔一个的
except for 除了...外
face to face 面对面地
far from 远非,远离
for ever 永远
for good 永久地
for the better 好转
for the moment 暂时,目前
for the present 暂时,目前
for the sake of 为了,为了...的利益
for the time being 暂时,眼下
from time to time 有时,不时
hand in hand 手拉手 ,密切关联
head on 迎面地,正面的
heart and soul 全心全意地
how about ...怎么样
in a hurry 匆忙,急于
in case of 假如,防备
in a moment 立刻,一会儿
in a sense 从某种意义上说
in a way 在某种程度上
in a word 简言之,总之
in accordance with 与...一致,按照
in addition 另外,加之
in addition to 除...之外(还)
in advance 预先,事先
建议：英语作文