21.be indicative of ，be suggestive of ，be fearful of代indicate， suggest ，fear.
22.give rise to， lead to， result in， trigger替換cause.
23. There are several reasons behind sth替換……reasons for sth.
24.desire替換want.
25.pour attention into替換pay attention to.
26.bear in mind that替換remember.
27. enjoy， possess替換have(注意process是過程的意思)。
28. interaction替換communication.
29.frown on sth替換be against www.med126.com， disagree with sth .
30.to name only a few， as an example替換for example， for instance.
31. next to / virtually impossible替換nearly / almost impossible.
32.regarding/concerning替換about.
33.crucial/paramount替換important.
34.第一(in the first place/the first and foremost);第二(there is one more point ，I should touch on， that…。);第三(the last but not the least)。
35. assiduous替換hard-working
36. arduous替換difficult
37.underdeveloped/financially-challenged替換poor(因為poor通常含有貶義)
38. demonstrate /manifest替換show
39. invariably替換always
40. perilous/hazardous替換dangerous(寫社會類作文時常用，說什么社會現(xiàn)象是不好的，有害的)
41. formidable替換difficult
42. quintessential替換typical(舉例時常用，例如：a quintessential example should be cited that=for example; for instance)
43. distinguished替換famous
44. feasible替換possible
45. consequently， accordingly替換so
