So many of you have probably seen the movie "The Martian." 我估计在座很多人都看过“火星救援”这部电影。 But for those of you who did not, it's a movie about an astronaut who is stranded on Mars, 对于没看过的人来说，这是一部关于一名宇航员被困在火星，
Remarks by the President on Health Care ReformEast Room1:50 P.M. EST THE PRESIDENT: Thank you so much, all of you, for joining us today. And I want to thank Julie, Barbara, Roland, Stephen, Renee, and
In the '50s, we started investing in hydropower, 在五十年代时，我们开始投资水电工程， and that kept us away from the trap of using fossil fuels for electricity generation, 这也使我们避免陷入使用石油来发电的困局， which is what the world i
This is my niece, Stella. 这是我的侄女，斯特拉。 She's just turned one and started to walk. 她刚满一岁并开始学走路了。 And she's walking in that really cool way that one-year-olds do,a kind of teetering, my-body'
