如视频未出现,请稍候,因为FLASH播放器正在加载中。。 THE PRESIDENT: Good morning. For more than a week, the people of the nation of Georgia have withstood assault from the Russian military. The world has watched with alarm a
A few years ago, you embarked on this mission to try and actually image one of these things. 几年前，你接受这项任务来尝试并且、构想出这些东西的样子。 And I guess you took -- you focused on this galaxy way out there. Tell us abou
It is a great pleasure to welcome President Karzai to my hometown of Chicago after he extended hospitality to me during my visit to to Kabul recently. 很高兴欢迎卡尔扎伊总统来到我的故乡芝加哥, 而最近在我访问喀布尔期间他对我热情款待。 During
As I should have shown this earlier, it will not be humans who witness the end point of the sun; it will be creatures as different from us as we are from bacteria. 我前面曾指出的一点是，人类将不能见证太阳的最后生命时刻，那时的生物与我们
