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
