on behalf of

汉语翻译

例句：

1. The legal guardian must act on behalf of the child.
   法定监护人应该维护这个孩子的利益。
2. I am appealing on behalf of the famine victims.
   我代表饥民恳求援助。
3. He agreed to testify on behalf of the accused man.
   他同意为被告作证。
4. She invested the money on behalf of her ward.
   她代表受她监护的人投资。
5. The agent spoke on behalf of his principal.
   代理人代表他的委托人说话。
6. 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。