1. large numbers of=tens of thousands of=many 大量的

2. large=massive=huge=enormous=vast 巨大的 adj.

3. resemble=look like=alike=much the same=akin to 相像 v.

4. foe=enemy=adversary=hostile 敌人 n.

5. more than=exceed=over=in excess of 超过 v.

6. decrease=crash=reduction=fall=drop 下降 n.

7. stop=halt=come to a halt 停止 v.

8. sufficient=abundant=enough=adequate 充足的 adj.

9. establish=found=build=set up 建立 v.

10. be Successful=prosper=do well=succeed=thrive 成功

11. recognize=certify=accept=acknowledge承认 v.

12. label=display=call=brand=hail 贴标签，命名 v.

13. adapt=adjust=get used to=become/grow accustomed to 适应 v.

14. mistake=error=fault=slip=mix-up 错误 n.

15. keep a check on=monitor=watch=keep an eye on 监视 v.

16. unexpected=unpredictable=unforeseeable 不可预见的 adj.

17. generally=in general=in the whole=all in all=all things considered 大体上的 adv.

18. previously=before=earlier=formerly 先前 adv.

19. apply=use=make use of=exercise=utilize 应用 v.