September 13, 2007 9:01 P.M. EDT THE PRESIDENT: Good evening. In the life of all free nations, there come moments that decide the direction of a country and reveal the character of its people. We are

I found that video very, very thought provoking, 我发现这个视频非常有感染力 and that's why I wanted to bring it here for you guys to see. 于是我把它带来跟大家分享 And what was interesting about it is the obvious choice 我做

November 6, 2007 THE PRESIDENT: Thank you all. Good afternoon. I just had an important briefing from Secretary Leavitt and other members of the inter-agency working group on import safety. The United

My fellow Americans, I am thrilled to be back in the United States after our first historic foreign trip. 我的美国同胞们，我非常激动地完成我们历史性的外访回到美国。 Over the course of 9 days, Melania and I traveled to some of the

哈佛商学院领导力与管理教授埃米·埃德蒙森：如何将一群陌生人变成一个团队？ Amy Edmondson: How to turn a group of strangers into a team 埃米·埃德蒙森：如何将一群陌生人变成一个团队？ It's August 5, 2010. A massive collapse at the San José Copper Mine in Northern