In his first weekly address since being sworn in as the 44th president of the United States, President Barack Obama discusses how the American Recovery and Reinvestment Plan will jump-start the econom
One such example of this is what I'm showing here, called "Galaxy Zoo." 类似的例子就是我现在展示的“银河动物园”项目。 Galaxy Zoo is a project where people get a 20-minute -- even less than that, actually 银河动物园项目是这样的：人们经过20
April 9, 2007 10:21 A.M. MST THE PRESIDENT: Thank you all. Thank you all very much, please be seated. Thanks for the warm welcome. Thanks for the warm weather. (Laughter.) AUDIENCE MEMBER: Twenty-eigh
