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。
If you're a person who uses pet phrases when you speak, you should train yourself carefully not to use these when you speak on the phone.
如果你是一个平常说话喜欢带口头禅的人，你就要训练自己小心地避免在接听电话时使用这些。
They are best qualified to speak on this question.
他们对这个问题最有发言权。
So who will speak on behalf of nature?
那么谁来替大自然说话呢？
All were invited to speak on the proposal.
大家都被邀请就这个提议发言。
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。
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。
I remember having heard you speak on that subject.
我记得曾听你谈论过那个题目。
The company authorized her to speak on their behalf.
公司授权她代表公司发言。
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。
The new device would allow them freedom to speak on their own.
新装置将让他们自由说话。
The two rarely speak on the phone, but they do send each other long emails.
她们两个几乎不通电话，但她们的确互相发送长长的电子邮件。
Suffer me a little, and I will shew thee that I have yet to speak on God's behalf.
你再容我片时，我就指示你，因我还有话为神说。
Mr Kimmitt will also speak on the issue today at the World Economic Forum in Davos.
金米特今天还将在达沃斯召开的世界经济论坛(WorldEconomicForum)上，就这一问题发表讲话。
It was announced that the Prime Minister would speak on television that evening.
据通告，首相将于当晚发表电视讲话。
My husband can't be here today, so I'm going to speak on his behalf (on behalf of him).
我丈夫今天不能来，所以我要代表他说话。(不可用stand for)。
He was on a holiday break at his Texas ranch, and let his spokesman speak on his behalf.
他当时在德克萨斯州的牧场度假，他让自己的发言人代表自己讲话。
Today he will speak on the relationship between theory and practice in financial markets. Peter Schiff.
今天，他将为我们做一次有关金融市场理论和实践方面的演讲。
He believes this generation are confident in themselves and don't need a leader to speak on their behalf.
他相信这代人很自信，不需要有领导来代表他们说话。
Well, let me say that in about two hours I will speak on Moscow TV and will make a short statement about my decision.
是这样，我想告诉你，再过大约两个小时，我会通过莫斯科的电视台发表讲话，就我的决定发布一项简短的声明。
Well, let me say that in about two hours I will speak on Moscow TV and will make a short statement about my decision.
是这样，我想告诉你，再过大约两个小时，我会通过莫斯科的电视台发表讲话，就我的决定发布一项简短的声明。
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