nail sth down 敲定某事使得万无一失
nail the brakes 急刹车
night hawk
nip sth in the bud 防患于未然
nitpicker 爱吹毛求疵的人
no fun 没有意思
no laughing matter 非同小可
no money, no honey
no negging 不要讥笑
no rest for the wicked 能者多劳
no way, jose
no-host bar 售酒柜台
not a good business 不是好事
not bad an eyelid 没有合眼睡觉，对事情太弱自若
not to wear your heart on your sleeve 不要太情绪化
nothing but skin and bones 很瘦
nothing damn good in it 一无是处
nothing will leave these walls
now you're talking 你说得有道理
number 衣服，美女
。