11, allergic to 对……过敏
Oh man! Something in this room is making my eyes itch. I must be allergic
to something.
12, at sb's service 愿为某人服务
I am at your service at any time.
13, around the clock 24小时不停
Martha studied around the clock for management exam.
14, as far as I know 就我所知
15，at home with 对…..很熟悉
She is at home with problems like this.
16, 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.
17, be cut out for 天生适合
I'm not cut out to be a hero.
18, be absorbed in
She has been absorbed in a horror fiction. I can't tear her away.
19, be addicted to 对……上瘾
She has been addicted to drugs for years.
20，be attached to 对……有感情
A: I'm amazed that you are still driving that old car of yours. I thought
you would have gotten rid of it years ago.
B: It runs well and I've actually been quite attached to it.
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