And if that's not enough, smiling can actually make you look good in the eyes of others. 如果这还不够，微笑还能够让我们在其他人眼里更好看。 A recent study at Penn State University found that when you smile, you don't only app

Thank you for your kindness, friends. Friends, this is not the speech I wanted to give today because I believe that Britain needed a Labour government. I still do, but the public voted otherwise last

Remarks of President Barack Obama As Prepared for Delivery Weekly AddressJanuary 9, 2010 A year ago, when I took office in the midst of在……之中 the worst recession since the Great Depressio

But personal DNA machines can also save human lives. 但个人DNA检测器还可以挽救人类的生命。 Professor Ian Goodfellow is a virologist at the University of Cambridge. Ian Goodfellow教授是剑桥大学的病毒学家。 Last year he traveled to

August 2, 2007 10:54 A.M. EDT THE PRESIDENT: Good morning. I just finished a Cabinet meeting. One of the things we discussed was the terrible situation there in Minneapolis. We talked about the fact t