by chance偶然，碰巧
take a chance冒险一试
in charge of负责,主管
take charge of担任，负责
check in办理登记手续
check out结帐后离开
check upon校对，检查
cheer up使高兴，使振奋，高兴起来
around / round the clock不分昼夜; 日夜不停
clear away扫除，收拾
clear up整理，收拾，清除，澄清
around /round the clock昼夜不停地
come off实现，成功，奏效
come on请,来吧，发展
come out出版，出现，显露，结局是
as if好像，仿佛
as though好像,仿佛
as to至于，关于
as well也，一-样
aside from除...之外
ask for请求，要求
pay attention to注意
on the average平均，一般来说
right away立即，马上
back and forth来回，往返，来来往往地
back off放,让步，退却
back up支持，援助
on the basis of根据，在...的基础上
break in强行进入，闯入，打断
break into闯入
break out突发，爆发
break through突破
break up终止，结束，打碎
catch one's breath屏息
out of breath喘不过气来，上不接下气
in brief 简而言之
bring about带来，造成
bring down.....挫伤
bring forth产生，提出
bring forward提出
bring out使出现，公布
bring to使恢复知觉
come round / around来访，苏醒
come through经历，脱险
come to总计，达到
come true实现，达到
come up走近，发生
come up to达到，符合
come up with提出，提供
in common共同，共有
keep company with与...交往，与...结伴
compare...to/with把...比作
by compare比较起来
be concerned with就...而言
be concerned with关心
in conclusion最后，总之
a number of若干
above all首要,尤其
be absorbed in专心于
by accident偶然
account for说明
on account of因为，由于
take..into account考虑
be accustomed to习惯于
add up to合计，总计
in addition另外
in addition to除...之外
in advance提前，预先
take advantage of利用
ahead of在...前面，先于
in the air在流行中，在传播中
after all终于，毕竟，虽然这样
all but几乎，差一点，除...之外其余都
because of由于，因为
on behalf of代表，为了
at the best充其量，至多
do/ try one's best尽力，努力
get the best of胜过
make the best of充分利用，妥善处理
for the better好转，改善
get the better of打败,智胜
had better最好还是，应该
on board在船/车飞机上
be bound to必定，一定
break away脱离，逃跑
break down损坏，分解，瓦解
burn out烧掉
burn up烧完，烧尽
call for邀请，要求，需要
call forth唤起，引起
call off放弃，取消
call on / upon访问，拜访
call up召集，动员
care for照顾，关心
take care小心，当心
take care of照顾，照料，负责
carry off夺去
carry on继续下去，坚持下去
carry out贯彻，执行，实现
in any case无论如何，总之
in case假如，万一
in no case决不
catch on理解，明白
catch up with追上，赶上
all over遍及，到外
all right行，可以
at all完全,根本
in all总共，共汁
make allowances for考虑，顾及，体谅
in alliance with与...联盟
leave..alone听其自然，不要去管
let alone更不用说
along with与...一起
one after another一个接一个
one another互相
apart from除去
as for至于，就...方面说
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