And then our mothers tell us, Careful you don't fall down, because you'll fall over. 然后母亲告诉我们，没有跌倒也要小心，因为你还会掉下来。 Now, go into the real atmosphere of this planet. 现在，进入这个行星真正的大气层。 This planet h

October 4, 2007 THE PRESIDENT: Thank you all for coming. Please be seated. Ramadan Mubarak. Laura and I are pleased to have you here for our seventh Iftaar dinner. Tonight we celebrate traditions of I

PRESIDENT BUSH: I want to welcome two friends to Camp David: President Sarkozy of France, who is representing the European Union, and President Barroso of the European Commission. We're really glad yo

So let's think about the inference. You want to generate beliefs about the world. 我们先来看推断。在推断中，我们要建立对于当前情景的“信念”。 So what are beliefs? Beliefs could be: where are my arms in space? 那么什么是信念？信念可以是我的胳膊在空间

The President has been receiving updates on the urgent situation in Haiti late into last night and throughout the day, and top members of his team have been convening to formulate the government respo