Dear Graduates, 亲爱的毕业生， Tomorrow, or maybe today, you will be leaving us. Like fresh winds blowing out of this lychee campus, like eagles spreading their wings, you aspire towards the azure sky higher

THE WHITE HOUSE, WASHINGTON July 4, 2009白宫，华盛顿 2009年7月4日 Today, we are called upon to remember not only the day our country was born, but also the indomitable spirit of the first American citizens who

So at edX and a number of other organizations, we are applying these technologies to education through MOOCs to really increase access to education. 所以在edX网站和一些其他的组织我们将这些技术应用于教育通过MOOCs，真正增加人们受教育的机会。 A

She actually has a Harvard psychiatrist,and she's been treated for a mood disorder among other things. 她有一个来自哈弗的精神医师帮她治疗她的情绪病和其他问题。 Many animals develop mood disorders. Lots of creatures a this ho

So, before I share with you some what I do know, I want to talk with you about what I don't know. 在我同你们分享一些我知道的事情之前，我想先谈谈我不知道的事情。 Now, I have two older brothers. One was in high school in the early 19