Remarks by the President on transportation infrastructure Department of Transportation, Washington, D.C. March 3, 2009 10:00 A.M. EST THE PRESIDENT: Thank you. Thank you, DOT. (Applause.) Thank you ve
Ladies and gentlemen： Good morning , I’m very glad to make a speech here. Today my topic is “I love you, China.” Since the day I was born, I began to have a proud name—Chines
Manu Prakash在Ted英语演讲：只要50美分,就能拥有如折纸般的显微镜(中英双语) 也许你以前曾经买过那些那些摺纸玩具，他们能够做出洋娃娃或天鹅？TED 的研究会员 Manu Prakash 和他的团队成功做出像折纸一样简单的显微镜。讲者在这段影片中提供了让人惊奇的示范，并告诉我们这个装置将如何对开发中国家的健康问题造成影响。另外，这项技术也能够让所有事情都变成有趣的手作科学实验。 Th
