1. There are several reasons behind sth 替换 …reasons for sth.

2. be indicative of, be suggestive of, be fearful of 替换 indicate, suggest , fear.

3. give rise to, lead to, result in, trigger 替换 cause.

4. pour attention into 替换 pay attention to.

5. desire 替换 want.

6. frown on sth 替换 be against , disagree with sth.

7. bear in mind that 替换 remember.

8. enjoy, possess 替换 have.

9. interaction 替换 communication.

10. to name only a few, as an example 替换 for example, for instance.

11. next to / virtually impossible 替换 nearly / almost impossible.

12. regarding / concerning 替换 about.

13. crucial /paramount 替换 important.

14. 第一 in the first place/the first and foremost.

15. 第二 there is one more point, I should touch on, that.

16. 第三 the last but not the least.

17. assiduous 替换 hard-working.

18. perilous / hazardous 替换 dangerous.

19. underdeveloped / financially-challenged 替换 poor.

20. demonstrate / manifest 替换 show.

21. invariably 替换 always.

22. arduous 替换 difficult.