I'd like to reimagine education. The last year has seen the invention of a new four-letter word. 我想要重新定义教育。去年出现了一个新的四字单词。 It starts with an M. MOOC: massive open online courses. 以M开头的缩写词MOOC：大规模网络公开课。
On the Holocaust Museum Shooting The President and Secretary of the Interior Ken Salazar offer condolences. President Obama: I am shocked and saddened by today’s shooting at the U.S. Holocaust Memoria
So I want to tell you a story -- an encouraging story 我想给大家讲个故事，很鼓舞人心， about addressing desperation, depression and despair in Afghanistan, 是有关解决阿富汗的绝望和抑郁的故事， and what we have learned from it, and how
