play的過去式是played

　　He played with his younger brother.

　　他和弟弟一起玩。

　　He played a major role in setting up the system.

　　他在建立這個系統的過程中扮演了主要的角色。

　　The media played an important part in the last election.

　　大眾傳媒在上一次選舉中發揮了重要作用。

　　Money played an important role in his life.

　　金錢在他的生活中扮演了重要的角色。