以下就是西安备考族培训学校小编努力为大家编辑的内容，希望能帮助到大家！
▼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.
▼allergic to对|……过敏
Oh man!Something in this room is making my eyes itch.I must be allergic to something.
▼at sb’s service愿为某人服务
I am at your service at any time.
▼around the clock 24小时不停
Martha studied around the clock for management exam.
▼as far as I know就我所知
▼at home with对…..很熟悉
She is at home with problems like this.
▼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.
▼be cut out for天生适合
I’m not cut out to be a hero.
▼be absorbed in
She has been absorbed in a horror fiction.I can’t tear her away.
▼be addicted to对……上瘾
She has been addicted to drugs for years.
