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.
