21, back up

　　1) 累积

　　The subway is running behind schedule, and traffic is backed up for blocks.

　　I dont know if well make the 6:30 show.

　　2) 支持

　　Ill back it up.

　　22, be bound for 到地方

　　The bus is bound for New England.

　　23, be myself 找到自我

　　Im feeling myself again.

　　24, be burned up 生气

　　She was really burned up at the news.

　　25, be hard up for

　　Im hard up for clothes, but I have a lot of books.

　　26, be head and shoulders above 好许多

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

　　27，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.

　　28，be stuck 卡住了

　　I cant get this window open. Its stuck.

　　29, bite off more than one can chew. 贪多嚼不烂

　　A: I hear youre taking an advanced physics course this semester.

　　B: I think Ive bitten off more than I can chew.

　　30, break new ground 有了新的突破

　　His architectural design broke new ground in the field.

　　31，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.

　　32, busy signal 占线

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

　　33,between you and me 你我之间，保密

　　34，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?

　　C,问

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

　　35, 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.

　　36,cash the check 兑现支票

　　Have your sister cashed her paycheck?

　　37,clear off 收拾，整理

　　Its about time we clear off the desk.

　　38,come down 下起来

　　The heavy rain is coming down, now.

　　39, 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.

　　40,come what may 不管怎样

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

　　21, back up

　　1) 累积

　　The subway is running behind schedule, and traffic is backed up for blocks.

　　I dont know if well make the 6:30 show.

　　2) 支持

　　Ill back it up.

　　22, be bound for 到地方

　　The bus is bound for New England.

　　23, be myself 找到自我

　　Im feeling myself again.

　　24, be burned up 生气

　　She was really burned up at the news.

　　25, be hard up for

　　Im hard up for clothes, but I have a lot of books.

　　26, be head and shoulders above 好许多

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

　　27，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.

　　28，be stuck 卡住了

　　I cant get this window open. Its stuck.

　　29, bite off more than one can chew. 贪多嚼不烂

　　A: I hear youre taking an advanced physics course this semester.

　　B: I think Ive bitten off more than I can chew.

　　30, break new ground 有了新的突破

　　His architectural design broke new ground in the field.

　　31，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.

　　32, busy signal 占线

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

　　33,between you and me 你我之间，保密

　　34，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?

　　C,问

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

　　35, 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.

　　36,cash the check 兑现支票

　　Have your sister cashed her paycheck?

　　37,clear off 收拾，整理

　　Its about time we clear off the desk.

　　38,come down 下起来

　　The heavy rain is coming down, now.

　　39, 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.

　　40,come what may 不管怎样

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