play his part

• vi. 尽自己职责(尽自己本分；尽自己一份力量)

play his part的用法和样例：

例句

1. Joe played his part to a fault and looked silly before the audience.
   乔的表演太过火，现观众面前显得傻头傻脑。
2. No matter who he may be, he can play his part in the modernization of our country.
   不管他是谁，他都可以在我国现代化中发挥作用。