1、I am honored to speak on behalf of my country.
代表我們國家做這次演講，餓哦感到萬分榮幸。

2、In 2009, I received an invitation to speak on behalf of the guests. It was a distinct honour.
2009年我受到邀請代表賓客致辭，這是一個(gè)重要的榮譽(yù)。

3、That is why I am curious who are they, are they qualified enough to speak on behalf of the state.
正因?yàn)?/a>如此，我很想知道他們都是誰，他們是否有資格代表國家發(fā)言。

4、So who will speak on behalf of nature?
那么誰來替大自然說話呢？

5、I am here to speak on behalf of the starving children around the world whose cries go unheard.
我演講是為了世界所有忍受饑餓的兒童，而他們的哭泣卻無人聽見。