THE PRESIDENT: Hello, everybody! (Applause.) I’m sorry, Bagram, I can’t hear you. (Applause.) Air Assault! (Applause.) It is great to be back. Let me first of all thank the 101st Airborne
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
THE PRESIDENT: Please have a seat, everybody. Happy New Year. Last October, when my former Chief of Staff Rahm Emanuel departed to pursue other opportunities in Chicago, I asked Pete Rouse, one of my
Second reason: it's been shown that if you speak two languages, dementia is less likely to set in, 第二个原因：有研究指出，同时讲两种语言的人更不容易痴呆， and that you are probably a better multitasker. 而且你可能更加的擅长多线操作。 And thes
