Hi, everybody.The right to vote is one of the most fundamental rights of any democracy.Yet for too long, too many of our fellow citizens were denied that right, simply because of the color of their sk
February 6, 2008 THE PRESIDENT: Thanks for the warm welcome. Before we begin the ceremony today, we turn our thoughts to those suffering from yesterday's tornados. This is a bad storm that affected a
We recently saw a case where some researchers made the H5N1 avian influenza virus more potent. 我们最近观察到一个案例，发现一些研究员将H5N1禽流感病毒变得更强效。 It already has a 70 percent mortality rate if you get it, but it's ha
英语演讲-01 Should smoking be banned? Different people have different opinions. Somesmokers think smoking is a kind of enjoyment, andthey could live without food but will die withoutsmoking. Also they
