authority given to a person to act for someone else, such as by voting for them in an election, or the person who this authority is given to

a proxy vote 代投的一票

My brother's voting for me by proxy in the club elections. 在俱乐部选举中，我弟弟代表我投票。

Can I nominate someone as a proxy to sign for me? 我能提名某个人代表我签字吗？