They saved the lives of our Members of Congress and prevented that dark day from becoming a tragedy beyond imagination. 他们拯救了国会议员的生命，阻止那个黑暗的日子变成超越想象的悲剧。 They, like so many other courageous police offi

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

Hi, everybody. This is commencement（开始，毕业典礼） season, a time for graduates and their families to celebrate one of the greatest achievements of a young person's life. But for many graduates, it also mea

So, some of you most likely were here two years ago and saw the demo by Jeff Han, 你们当中有些人两年前在这里应该看过Jeff Han演示微软的Surface系统， or some of you may think, "Well, doesn't this look like the Microsoft Surface

JenniferNacif向我们讲解了如何在与孩子们沟通时，将控制转换为激励。Jennifer在演讲中扮演了四个性格各不相同的孩子，她以这种聪明的方式向我们展示了不同性格需求父母不同的对应。 Jennifer Nacif: The Secret to Motivating Your Child 如何激励你的孩子？正确激励孩子的4个秘诀 I'm so excited! 我真是太激动了。（观众笑声）