play的过去式是played

He played with his younger brother.

他和弟弟一起玩。

He played a major role in setting up the system.

他在建立这个系统的过程中扮演了主要的.角色。

The media played an important part in the last election.

大众传媒在上一次选举中发挥了重要作用。

Money played an important role in his life.

金钱在他的生活中扮演了重要的角色。