speak on

基本解释

I said that it has no help, I see people suffering and I want to speak on their behalf.
我说那没有用，我看见过在受苦的人们而我想代表他们说话。
blog.sina.com.cn
I speak on behalf of the Jewish people and the Jewish state when I say to you, representatives of America, Thank you.
我对你们说这些，那代表着这个犹太民族和犹太国家的利益，而你们代表着美国，谢谢。
Approach other organizations by asking to speak on a matter of community importance at their next executive or general meeting.
通过要求在他们下次首脑会议或者日常会议上发表关于社区重要性的演讲，来和其他组织取得联系。

President Obama will speak on Tuesday about his plans for tackling the nation's In his weekly radio and Internet address, Mr.Obama says the drop from October's 10.2 percent jobless rate is a positive trend, but he is not satisfied.
And so it seemed a natural move for early Christian writers to use this existing pastoral form when they wanted to speak on subject of priests or ministers or affairs of the church.
于是用现存的田园诗来谈论,关于牧师或教堂事务的话题,成了早期基督派作家非常自然的转变。
耶鲁公开课 - 弥尔顿课程节选
The Republic is a book about the regime and all later political philosophy is a series of footnotes to Plato and that means that it must provide a series of variations so to speak on Plato's conception of the best regime.
理想国》是一本关于政体的书,之后所有的政治哲学都不过是一系列,对柏拉图的批注，也就是说，它必需提供,一系列的差异来解释,柏拉图概念中的最佳政体。
耶鲁公开课 - 政治哲学导论课程节选

And the entire people of Israel appreciate it, and I speak on their behalf.
WHITEHOUSE: President Obama & Prime Minister Netanyahu: "The Common Goal is Peace"