TED演讲之寻找真理:科学可以回答道德问题(2)
And if we're more concerned about our fellow primates than we are about insects, as indeed we are, 如果和昆虫做比较,我们比较关心我们自己的物种 it's because we think they're exposed to a greater range of potent
TED英语演讲:运动为大脑带来的益处
What if I told you there was something thatyou can do right now that would have an immediate, positive benefit for yourbrain including your mood and your focus? And what if I told you that samething
奥巴马每周电视讲话:总统呼吁减少碳排放
Hi, everybody. 大家好! I'm here at Children's National Medical Center in Washington, D.C., visiting with some kids being treated here all the time for asthma and other breathing problems. 此刻,我在华盛
Weekly Address
Prepared Remarks of President Barack ObamaWeekly AddressThe White HouseJune 27, 2009 Yesterday, the House of Representatives passed a historic piece of legislation that will open the door to a clean e
奥巴马演讲:奥巴马提名Jacob Lew任白宫预算主任
President Obama introduces Jacob Lew as his nominee to become director of the Office of Management and Budget. The President praises Lew for his role in balancing the budget when he led OMB from 1998