知名毕业演讲特辑之二：“脸书”首席运营官谢莉·桑德伯格首次公开谈及丈夫过世一事 Sheryl Sandberg's Powerful UC Berkeley Commencement Speech(Excerpt) Sheryl Sandberg made an emotional appeal for resilience and gratitude

THE PRESIDENT: Hello, everybody! Hello! (Applause.) Hello. Hello, hello, hello. Hello. Well, good evening, everybody. This is a pretty feisty（活跃的，吵闹的） group here. (Laughter.) AUDIENCE MEMBER: We love

So we don't have people on Mars right now, but we do have rovers. 我们现在并没有人类生活在火星，但是我们有漫游者探测器。 And actually right now, on Curiosity, it is 6:10 in the morning. 现在，好奇号漫游者的时间是早上6点10分。 So, 6:10 in the mor

在加勒比岛国海地本月12日发生强烈地震后，国际社会纷纷伸出援手，表示将向海地提供人道主义援助。美国总统奥巴马13日就海地遭遇强震发表讲话，承诺美国将迅速积极反应，全力帮助海地救灾。以下是他讲话的全文。 Here are President Obama’s remarks Wednesday morning on the earthquake in Haiti and rescue ef

August 28, 2008 During National Days of Prayer and Remembrance, we pay special tribute to the thousands of innocent victims who died on September 11, 2001. Our Nation honors the brave citizens, servic