I sent my representative to the meeting.我派了代表参加会议。
He is a representative for a large steel company.他是一家大型钢铁公司的代理人。

representative, delegate, deputy
参见delegate条。

用作定语
▲～+n.
 We have a representative sample.我们有一个代表性的样品。
用作表语
▲S+be+～
 This question is very representative.这个问题非常典型。