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.