Greetings from the World Health Organization in Geneva. As threats from major infectious diseases like AIDS, tuberculosis and malaria continue to decline, other preventable killers become more visible
Hello, everybody. It is a pleasure to welcome all of you to the White House. I'm going to be very brief, because I know you're all looking forward to heading down the street a little bit later for a w
Weekly Address: Giving Every Child, Everywhere, a Fair Shot (February 14, 2015) 奥巴马每周电视演讲：给每一个孩子公平的机会 Hi, everybody. In my State of the Union Address, I laid out my ideas to help working families feel
Well, we chose the second option, and language is the result. 我们选了第二条路，语言就是产物 Language evolved to solve the crisis of visual theft. 语言的进化解决了观察性窃取的危机 Language is a piece of social technology for enhanc
