So the reason there's a time difference on Mars right now, 火星上的时间和我们现在的时间是不一样的， from the time that we're at is because the Martian day is longer than the Earth day. 因为火星的一天比地球要长。 Our Earth day is 24 h
March 6, 2007 10:05 A.M. EST THE PRESIDENT: Thank you very much, Paul, for that warm welcome. I appreciate the fact that you've given me a chance to come and address you. I welcome you to our nation's
This week, I went to Memphis, Tennessee, where I spoke to the graduating class of Booker T. Washington High School. Graduations are always happy occasions. But this commencement was especially hopeful
