Hi, everybody. This Labor Day weekend, as we gather with family and friends, we'll also come together as a nation to honor some of our own-the working men and women of America who, across the generati
Prosperity. The first era of the internet, the internet of information, 繁荣。互联网的第一个时代，信息的互联， brought us wealth but not shared prosperity, because social inequality is growing. 带给我们财富，但是没有共享繁荣，因为社会变得日趋不
We also then went to look at what are these molecules -- these were the red triangles on my slides before. 我们同时也研究了这些小分子，这些就是我刚才幻灯上的小红三角形。 This is the Vibrio fischeri molecule. This is the word that i
US President's radio address on congressional priorities (June 4,2005) THE PRESIDENT: Good morning. America's economy is on the right track. Over the past two years, we've added more than 3.5 million
