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.