January 17, 2008 THE PRESIDENT: I've just had an extensive visit with Madam Secretary and members of my national security team; Rich Williamson, who is the Presidential Envoy -- Special Envoy to Sudan
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。 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也许你以前曾经买过
At this time of year, few sights evoke more feelings of cheer and goodwill than the twinkling lights of a Christmas tree. 每年此时，没有什么情景比一棵圣诞树上闪烁的灯光更让人感到欢乐祥和。 The popularity of a tree at Christmas is due
The President reflects on lessons from his time spent outside Washington recently, which only reinforced the core principles in his budget. The budget will be his central focus throughout this week: "
