29. head over heels 深陷;完全地
30. Suit yourself. 隨你高興
31. What's the catch? 有什么意圖?
32. let the cat out of bag 泄漏秘密
33. sth. is touch and go 危險(xiǎn)的情況;驚險(xiǎn)的;一觸即發(fā)的
34. beat a dead horse 白費(fèi)勁
35. The sky's the limit. 沒有限制
36. once in a blue moon 千載難逢;難得一次
37. Be prepared. 準(zhǔn)備好
38. It's easier said than done. 說的比做的簡(jiǎn)單
39. have second thoughts 考慮一下;猶豫
40. behind someone's back 在某人背后;背著某人
41. Better luck next time. 下次運(yùn)氣更好
42. come in handy 派得上用場(chǎng)