February 1, 2008 THE PRESIDENT: Thank you, all. Thank you for letting me come by to say hello. A couple of observations -- one, you work for a fabulous company of caring people. I appreciate, Don, you

The puzzle we came up with was an if-then rule. 我们想出的难题是个”如果-则“规则。 We asked the bees to learn not just to go to a certain color, but to a certain color flower only when it's in a certain pattern. 我们要求

The United States has been at the center of the international financial system ever since the Second World War. The dollar has served as the main international currency and the United States has deriv

Hi, everybody. 大家好! This is commencement season, a time for graduates and their families to celebrate one of the greatest achievements of a young person's life. 又到一年毕业季,毕业生和他们的家长一起庆祝一个年轻人一生中最重要的时刻

Hi, everybody. 大家好。 In my State of the Union Address, I talked about the idea of opportunity for all. 在我的国情咨文里，我谈到了为所有人创造机会的理念。 Opportunity is the idea at the heart of this country-that no matter who