例如，你可能需要一间大房间，在那里每个人都能聚在一起做主题演讲或演示，而较小的会议室则可以进行非正式的小组讨论。

For example, you may need a large room where everyone can be together for keynote speeches or presentations, and smaller meeting rooms for informal group discussions.

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约翰的汉语老师经常让学生做关于伟大作家的主题演讲。

John's Chinese teacher often asks students to give speeches on great writers.

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今年的主题演讲将由考特尼·利德尔教授主讲。

The keynote address will be delivered this year by Professor Courtney Lyder.

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Tony Blair, in 2006, was addressing the issue of diet and obesity, and here's some of the things he said.

托尼·布莱尔,在2006年,就饮食和肥胖这个主题进行演讲,这里是他讲的一些内容

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选

If you zoom in up top, which I can't quite do with a keynote here, it says, "This last minute shopping, bargain hunting."

如果你想追根究底，我也不能,在这里做一个主题演讲，它说，“这是最后一分钟购物，特价商品大甩卖“

哈佛公开课 - 计算机科学课程节选