Oh man! Something in this room is making my eyes itch. I must be allergic to something.
2, at sb’s service 愿为某人服务
I am at your service at any time.
3, around the clock 24小时不停
Martha studied around the clock for management exam.
4, as far as I know 就我所知
5，at home with 对…..很熟悉
She is at home with problems like this.
6, back out
A: Wasn’t Bert supposed to sing tonight?
B: Yes, but he backed out at last minute
She finally backed out of her promise.
7, be cut out for 天生适合
I’m not cut out to be a hero.
8, be absorbed in
She has been absorbed in a horror fiction. I can’t tear her away.
9, be addicted to 对……上瘾
She has been addicted to drugs for years.
10，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.
11, back up
The subway is running behind schedule, and traffic is backed up for blocks. I don’t know if we’ll make the 6:30 show.
I’ll back it up....