1.Above all:最重要的是，most important of all

　　Above all, theyll have to discover how much nitrogen it possesses since nitrogen is4/5 of the air breathe.

　　2.Account for:解释。说明

　　How do you account for the truth?

　　3.After all：终究，毕竟

　　We wont be laid off after all.

　　4.Air /car crash:空难，车祸

　　5.Allergic to:过敏

　　Im allergic to beef and mutton.

　　6.Appeal to:吸引，呼吁。

　　Could you tell me which position you think most appeals to you?

　　7.Apply for/to, application letter 申请，求职信

　　8.At ease:安逸，自由自在

　　I dont know why he is ill at ease?心神不宁

　　9.Back up:支持，援助。

　　10.Beat the crowd :避开人群，避开高峰

　　The only to beat the crowds when you do the grocery shopping on Sunday is to be here when they open at 9 sharp.