471-480
hit the nail on the head正中要害，话说到点子
the professor said that my summary of the report did not hit the nail on the head, so i’ll have to rewrite it.

break the neck of…攻破难关；完成最难干的部分
now we have broken the neck

up to one’s neck in…深深陷入……，深深卷入……
he’s been up to his neck in his work, we must let him take it easy or he’ll go to pieces.

look for a needle in a bundle of hay大海捞针
you want me to look your watch on the slopes? that’s to look for a needle in a bundle of hay.

get on someone’s nerves使某人心烦意乱
don’t get on her nerves! she has been troubled with too many things.

foul one’s own nest说自家人的坏话，家丑外扬
i can’t understand why she would foul her own nest. what good does she get out of it?

stir up a nest of hornets捅马蜂窝；自找麻烦
joe has stirred up a nest of hornets: he sold some financial secrets to those who had planned to get goods on his crimes.

more nice than wise死要面子活受罪
nobody had expected you to cook such a big dinner and the food you had prepared was enough to feed an army. you were simply more nice than wise.

a nice days’ wonder一闪即失的人或物
this film is no more than a nice days’ wonder. it will disappear into yhin air soon.

nip something in the bud消除隐患
we must nit this sort of crimes in the bud, or we are to leave a thin edge for future trouble