1. 代表;(尤指)会议代表
    A delegate is a person who is chosen to vote or make decisions on behalf of a group of other people, especially at a conference or a meeting.

2. 授(权);把(职责、责任等)委托(给)
    If you delegate duties, responsibilities, or power to someone, you give them those duties, those responsibilities, or that power so that they can act on your behalf.

    e.g. He plans to delegate more authority to his deputies...
           他打算把更多的权力交给副手。
    e.g. How many of their activities can be safely and effectively delegated to less trained staff?...
           他们的活动有多少可以稳妥有效地委托给那些资质稍浅的员工来进行？

3. 授权，委派（做）
    If you are delegated to do something, you are given the duty of acting on someone else's behalf by making decisions, voting, or doing some particular work.

    e.g. Officials have now been delegated to start work on a draft settlement.
           现在已经委派官员着手起草解决方案。