21. Not at all. 別客氣。　　　 not only ... but also 不僅…而且…　

not ...but... 不是…而是　　 not that ... but that ... 不是(因為)…而是(因為)…

20. talk nonsense　 胡說　　 talk business　 談正經事　

make nonsense of　 攪亂　 The depression made nonsense of our plan.

19. None of the students is/are ... none but 只有　 They choose none but the best.他們只挑最好。　　　　　　 none other than 不是別人正是…　　 He is none other than our headmaster.

18. nod at sb 朝…點頭　　　 He nodded at me to continue. 他點頭示意我繼續(xù)。

17. noble　 高尚的；宏偉的a man of noble birth 出生高貴的人　 a noble building 宏偉的建筑

16. I have no money to buy books.　　 He is no artist.他算不上一個藝術家�！� say no to　 否認

He is no friend of mine. 他不是我朋友�！　� There is no denying that ... 無法否認…

It is no use/good doing ...　　 in no time 馬上　　　 no wonder 怪不得　　　 no longer 不再

no doubt 無疑　　　 I have no doubt that ...　　　 There is no doubt that ...　　

no more than 兩者都不　　 had no sooner… than 一…就…

no　 并非　　　　 It is no easy work.　　　　　 We have no such luck.

15. at night　　 by night 利用黑夜　　　　 Have a good night . 睡好

14. nevertheless 不過；仍然　 in spit of that　 = nonetheless

　　　　 There was no news; nevertheless we went on hoping.

13. net　 網， 凈余的　　　 net weight 凈重　　　 net profit 凈利潤

12. nervous　 神經緊張的　　 be nervous about