My dear Teachers，fellow students and friends： Good afternoon．As we all know, the earth is a planet almost covered by water，and it is water made every thing on the earth lively．Water is also one of the

Hi, everybody. This week, there was a big birthday you might have missed. Medicare and Medicaid turned 50 years old. And that's something worth celebrating. 大家好!本周，大家可能错过了一个重大的节日。医疗保险和医疗补助制度已经50岁了

President Bush Delivers Commencement Address at Texas A&M THE PRESIDENT: Thank you all. Howdy! AUDIENCE: Howdy! THE PRESIDENT: I am thrilled to be back in Aggieland. (Applause.) And it's always an

Charles C. Mann在Ted的演讲，当地球人口超100亿，我们又将如何生存？ Charles C. Mann: How will we survive when the population hits 10 billion? 当地球人口达到100亿时，我们将如何生存 How are we doing? No, no, no, by that, I meant, how are we, h

"The particular faith that motivates each of us can promote a greater good for all of us," President Obama said this morning to a crowd of several thousand people gathered for the National P