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　　1、 be head and shoulders above 好许多

　　In calculus, Joe is head and shoulders above his classmates.

　　2、be in the dark 蒙在鼓里

　　A: Do you have any idea what his notice is about

　　B: Im as in the dark as you are.

　　3、be stuck 卡住了

　　I cant get this window open. Its stuck.

　　4、 break new ground 有了新的突破

　　His architecturaldesign broke new ground in the field.

　　5、benefit concert 慈善音乐会

　　We need to let everyone know about the benefit concert、 but we dont have

　　much money for advertising.

　　6、 busy signal

　　Ive been calling David for the past half hour, but I keep getting a busysignal.

　　7、between you and me 你我之间、保密

　　8、call for

　　A、打电话找

　　Tom just called for you.

　　B、预报

　　The forecast calls for heavy rain again tonight. Arent you glad well be getting away from this for a week

　　Its probably in the new part of town. Well have to call for directions.

　　9、 call it a day 就此结束

　　A: Im really glad our club decides to raise money for the childrens hospital, and most of the people weve phoned seemed happy to contribute.

　　B: Yeah、 I agree. Now weve gone through all the numbers on our list now, so I guess we can call it a day.

　　10、cash the check 兑现支票

　　Have your sister cashed her paycheck

　　11、clear off 收拾、整理

　　Its about time we clear off the desk.

　　12、come down (雨、雪)下起来

　　The heavy rain is coming down, now.

　　13、 come in first in the race 比赛第一名

　　Not only did Jill come in first in the race but she also had her best running time of the season.

　　14、come what may 不管怎样

　　Well pick you up tomorrow at eight, come what may.

　　15、cost somebody an arm and a leg

　　A: Did you see the diamondring Bill gave to Linda

　　B: I sure did. It must have cost him an arm and a leg.

　　16、 cut it out 闭嘴

　　I told you to cut it out.

　　17、be cut out for 生来时做的

　　Dr. Hamilton doesnt feel Larry is cut out for the medical profession.

　　18、department chair 系主任

　　I didnt write that memoto the department chair.

　　19、dirt cheap 非常便宜

　　A: Youve already furnished your apartment

　　B: Ive found some used furniture that was dirt cheap.

　　20、 do with 用..凑合. do without 没有也行

　　You can do with your girlfriend.

　　You can do without your girlfriend

　　21、 dog tired 特别累、同义：run down. worn out. out of steam

　　Im dog tired these days. Im working on seven articles.

　　22、 down jacket 羽绒服

　　23、drive somebody up the wall 让某人发疯;同义：drive somebody out of ones mind

　　The sound of all that raffic is driving me out of my mind.

　　24、 fall back on 依赖

　　A: Were you able to understand that French novel without any help from theteacher

　　B: I did pretty well、 but I had to fall back on my dictionary occasionally