THE PRESIDENT: Hello, everybody. What’s going on, guys? Thank you, thank you, everybody. Everybody have a seat. Well, hello. Welcome to the White House. Congratulations to Sky Blue on winning yo

Four hundred parts per million: that's the approximate concentration of CO2 in the air today. What does this even mean? 百万分之四百：这就是现在空气里二氧化碳大概的浓度。这意味着什么呢？ For every 400 molecules of carbon dioxide, we

[Falwell: Somewhat] Somewhat, he says. This is, of course, a nonpolitical speech which is probably best under the circumstances. Since I am not a candidate for President, it would certainly be inappro

WeeklyAddress: It's Time to Fill the Vacancy on the Supreme Court 奥巴马每周电视演讲：是填补最高法院空缺的时候了 Hi, folks. Joe Biden here and I'm sitting with Tim Lewis, a retired federal judge who was nominated to

May we not cherish this sentiment without presumption when we refect on the characters by which this war is distinguished? 难道只有在怀疑使得这场战争非同寻常的因素时，我们才能骄傲地将这份情感珍藏吗？ It was not declared on the part of the