play a key role in：起關(guān)鍵作用

6. It is obvious that...顯而易見(jiàn),... | 7. play a key role in 起關(guān)鍵作用 | 8. enhance the efficiency of...提高效率

play a key role in：在......中起主要的作用

25.at the end of... 在......結(jié)束的時(shí)候 | 26.play a key role in... 在......中起主要的作用 | 27.medical initiative 醫(yī)學(xué)的主動(dòng)行為

play a key role in：在某方面起重要作用

account for 解釋,說(shuō)明 | play a key role in 在某方面起重要作用 | at all levels 各個(gè)級(jí)別

play a key role in：起關(guān)鍵功能

It is obvious these...顯而易見(jiàn),... | play a key role in 起關(guān)鍵功能 | enhance the efficiency of...升高效率

play an important role in：在......起重要作用

5. lack of缺乏 | 6. play an important role in在......起重要作用 | 7. pass further laws又通過(guò)了一些法令

play an important role in：扮演重要角色

78 喜愛(ài)藝術(shù) have a great liking for arts | 79 扮演重要角色 play an important role in | 80 聊天 have a chat with

play an important role in：在.....中起重要作用

3. Change one's mind 改變主意 | 4. play an important role in 在.....中起重要作用 | 6. work out 計(jì)算出

play an important role in：扮演重要角色,起重要作用

note down 記下 | play an important role in ... 扮演重要角色,起重要作用 | in other words 換句話說(shuō)

to play an important role in：扮演重要角色

78 喜愛(ài)藝術(shù) to have a great liking for arts | 79 扮演重要角色 to play an important role in | 80 聊天 to have a chat with

play an important role in doing：起重要作用

107.play an important role in doing起重要作用; | 108.be interested in對(duì)---感興趣; | 109.be convinced of確信;