23.refresh 清新refresh sb = make sb fresh against使…感到清新 refresh one’s spirits 精神振作

22. reform 　改革　 reform oneself　　 land reform　 土地改革

21. refer 提到　 This is a book he refered to.　

20. reduce 减少reduce the rent to￥90 per month.把房租降低到每月90元。reduce…by降低了

　　　　　　 reduce supplies 减少供应　　　　　 at a reduced price 廉价

19. recycle　 回收利用　　 the recycled paper 再生纸　 　　Paper can be recycled.

18. recover from 从…中康复

17. record　 记录　　 on record 有记录的 　record sth = make a record of　

16. recommend 推荐　　 recommend sb sth　　　 recommend sth to sb　　　

　　　 I recommend ed your buying the book. = I recommended that you (should) buy the book.

15. recognize one's voice 辩出…的声音　　 recognize…as　 承认…

14. recall 回忆,回想. recall sth to sb 　I recalled the night with her.回想和她在一起的那个晚上。

The photo recalled my childhood (to me). 照片使我回想起童年。

　It occured to/strike/remind sb that…