She was nominated to speak on our behalf.
她被指派代表我们发言。
She was billed to speak on 'China—Yesterday and Today'.
据宣传她要发表题为“中国—昨天和今天”的演讲。
British people seldom speak on the train, or the bus.
英国人很少在火车上或公共汽车上说话。
They are best qualified to speak on this question.
他们对这个问题最有发言权。
他今晚将在电视上讲话。
So who will speak on behalf of nature?
那么谁来替大自然说话呢？
He is going to speak on TV this evening.
他今晚到电视台讲话。
What can you speak on God's behalf today?
今天你能代表上帝说什么？
All were invited to speak on the proposal.
大家都被邀请就这个提议发言。
I feel unqualified to speak on the subject.
我自觉无资格就此问题发言。
They fixed on him to speak on their behalf.
他们已经确定他作为代表发言。
I told him to speak on any subject he wanted.
我已告诉他想谈什么就谈什么。
I am honored to speak on behalf of my country.
代表我们国家做这次演讲，饿哦感到万分荣幸。
I heard him speak on HIV and I invited him here.
我听他谈论艾滋病毒问题并邀请他来此。
The American people are going to speak on that.
美国人民将对此发出他们的声音。
I remember having heard you speak on that subject.
我记得曾听你谈论过那个题目。
Usually it's a pleasure to speak on such an occasion.
通常，在这样的场合下谈话很有一番乐趣。
The company authorized her to speak on their behalf.
公司授权她代表公司发言。
The Prime Minister is to speak on television tonight.
今晚首相将发表电视讲话。
Think and speak on verified, proven information and data.
根据经过确认和证明的信息和数据讨论问题。
And so we speak on the enigmatic purpose of the Pyramids.
下面我们谈谈这些金字塔高深莫测的作用。
Professor Wang is going to speak on Old English tomorrow.
王教授明天要作关于古英语的讲演。
The new device would allow them freedom to speak on their own.
新装置将让他们自由说话。
The university refused to let Dick Gregory speak on campus.
这所大学不让迪克·格雷戈里在校园里发表演说。
The university refused to let Dick Gregory speak on campus .
这所大学不让迪克·格雷戈里在校园里发表演说。
It appears to be very unnatural that he should speak on her behalf.
他既然代表她讲话，看来这是很反常的。
It appears to be very unnatural that he should speak on her behalf.
他既然代表她讲话，看来这是很反常的。
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