Hello, everybody. In our house, everybody knows that President is only the third-most important job in the family. So this weekend, I'm going to take a little extra time to say thank you to Michel
Hi, everybody. 大家好！ I'm here at Children's National Medical Center in Washington, D.C., visiting with some kids being treated here all the time for asthma and other breathing problems. 此刻，我在华盛
