01. negligible a. 可以忽略不计的 the ~ cost
02. norm n. 标准 reach the ~
03. notable a. 著名的
04. notorious a. 臭名昭著的 If one has a scandal, hebecomes ~
05. nourish v. 养育
06. obedient a. 顺从的 If you are ready to obey orders,you are ~
07. obscure a. 费解的,模糊不清的;不著名的>Is the sentencestill ~ to you?/ His name was ~ 3 years ago.
08. odor n. 气味 I smelt a strange ~.
09. offset v. 抵消 =compensate for
10. optimum a. 最佳的
11. orient v. 使适应 ~ oneself to
12. overwhelm v. (感情上)使受不了;压倒 >be ~edwith sadness/~ majority
13. paradox n. 自相矛盾=contradiction
14. participant n. 参加者
15. patent n. 专利
16. patrol v./n. 巡逻
17. patriotic a. 爱国的
18. pave v. 铺路 ~ the way for women’s Lib
19. permeate v. 弥漫; 渗透
A bad smell ~s the building./Water ~d all the books in the room.
20. perpetual a. 永久的
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