A:The jury played a part in trial.

　　陪审团在审判中起到了作用。

　　B:So the jury is also improtant.

　　所以陪审团也很重要。

　　The teacher palyed a part in the decision.

　　老师在这个决定中起到了作用。

　　Who plays a part in the negotiation?

　　谁在谈判中起到了作用？

　　Everyone plays a part in the perform.

　　每个人都在这次表演中起到了作用。

　　延伸阅读:

　　A:What did the judge directed the jury to do?

　　法官指示陪审团做什么？

　　B:The judge directed the jury to acquit all of the defendants.

　　法官指示陪审团裁定所有被告无罪。

　　The manager directed the workers to change the regulations of quailty control.

　　经理指示工人改变质量管理规定。

　　The boss directed him to repair the machine.

　　老板指示他修理这台机器。

　　Who directed you to do this?

　　谁指示你做了这个？