11.昙花一现

　　a flash in the pan　

　　12.他对保险业务一窍不通。

　　He doesn’t know beans about insurance business at all.　

　　13.她很勇敢，但终因寡不敌众，被那帮人打晕过去。

　　The girl was brave enough, but as being outnumbered, she was finally knocked into the middle of next week by the gang.　

　　14.他喜欢单枪匹马地去干。

　　He always likes to play a lone¹ hand.　

　　15.他一开始就出师不利。

　　He got off on the wrong foot when he started doing it.　

　　16.你还嫩点儿。

　　You’re still wet behind the ears.　

　　17.她的饭量特别小。

　　She eats like a bird.　

　　18.那个孩子的嘴特别硬。

　　That boy never says uncle.

　　19.我们队占上风。

　　Our team gained the upper hand.　

　　20.你中圈套了。

　　You rose to the bait.