ph.

1. He has played an important part in carrying through the whole plan.
他在整个计划的实行中扮演了重要的角色。

1. 起作用：put...in order整理,检修 | play a part in起作用 | take the place of代替来源:考试大

2. 在......起作用：once in a while 偶尔,间或 | play a part in 在......起作用 | stand in line 站在队里

3. 参与,起作用：persuade sb. of 使某人相信 | play a part in 参与,起作用 | play a trick/joke on 捉弄,开......的玩笑

4. 与...有关,对...有影响：play with以...为消遣, 玩弄 | play a part in与...有关,对...有影响 | The church plays an important part in people life.教堂在人们生活中起着重要的作用.