1. after all 到底
A： I've just seen the X-rays and your teeth look just fine，
B： I see. Then there is nothing to worry about after all.
2. allergic to 对|……过敏
Oh man! Something in this room is making my eyes itch. I must be allergic to something.
3. at sb's service 愿为某人服务
I am at your service at any time.
4.around the clock 24小时不停
Martha studied around the clock for management exam.
5. as far as I know 就我所知
6.at home with 对…..很熟悉
She is at home with problems like this.
7. back out
1) 退出
A： Wasn't Bert supposed to sing tonight?
B： Yes， but he backed out at last minute
2)不履行
She finally backed out of her promise.
8. be cut out for 天生适合
I'm not cut out to be a hero.
9. be absorbed in
She has been absorbed in a horror fiction. I can't tear her away.
10. be addicted to 对……上瘾
She has been addicted to drugs for years.
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