Hi, everybody. 大家好。 A few weeks ago, we launched an important new part of the Affordable Care Act. 我们开始实施一项事关全美国人的《平价医保法》。 It's called the Marketplace. 我们称之为医保市场。 And for Americans without health
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
And I think what I'm trying to say to you is that each and every one of you can make a difference. So as you study and as you become smarter, and as you become richer, think about these millions o
We understand that the great arc of human history bends towards people coming together in ever greater numbers, 回顾历史，历史的车轮总是青睐于更大基数的集体， from tribes to cities to nations -- to achieve things that we co
