n.代表；利益；方面

The agent spoke on behalf of his principal. 代理人代表他的委托人说话。

On behalf of my colleagues and myself I thank you. 我代表我的同事和我本人向你表示感谢。

He agreed to testify on behalf of the accused man. 他同意为被告作证。

I put up the proposal on your behalf. 我是为你的利益才提出这个建议的。

I made all these troubles in your behalf. 我是为了你才找这么多麻烦的。

I intervened on her behalf to try to get the decision changed. 我为她力争，以求改变决定。

They threatened to become distressed sellers of large volumes of debt securities where they had been the biggest investors or had held assets on behalf of others. 它们威胁称，有可能被迫抛售大量债券，它们要么是这些债券的最大投资者，要么代表其它方面持有这些资产。

behalf的意思是“代表,利益”,作“利益”解时表示“为了…的利益”，在英式用法中常用on behalf of...,在美式用法中常用in behalf of...。