公众人物毕业演讲第121期:2013年克林顿在霍华德大学(1)

Thank you very much 非常感谢 First of all, thank you 首先谢谢你们 I thank you and Dr. Paula WhetselRibeau 谢谢你们还有宝拉?威索尔里博博士 Thank you for meeting me outside with your daughter 谢谢你带着你女儿在外面接

发表于:2018-12-30 / 阅读(300) / 评论(0)

公众人物毕业演讲

Supermassive Black Holes 超大质量黑洞 - 10

If, as it now seems, every single galaxy has a black hole at its heart, this can't be a coincidence. Perhaps black holes are an essential part of what galaxies are and how they work. No one had expect

发表于:2019-01-02 / 阅读(617) / 评论(0)

超大质量黑洞

SSS 2008-04-10

This is Scientific American's 60-Second Science, I'm Steve Mirsky, got a minute? Every Star Trek fan knows theres matter and antimatter, but why is there apparently so much more matter than antimatter？Scientific American's JR Minkel: Two recent exp

发表于:2019-01-08 / 阅读(365) / 评论(0)

Scientific American(四)月

原汁原味商务英语播客第43课:商务出差(1)

This Business English Podcast lesson is the first in a series of shows that will follow an employee of a manufacturing company on a training trip to the U.S. Over the series, well practice many situations that will be useful for you on your business

发表于:2019-01-18 / 阅读(276) / 评论(0)

原汁原味商务英语播客

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