Hi, everybody. This week, I announced a series of concrete steps we should take to protect our children and our communities from gun violence. These proposals grew out of meetings Vice President Biden
Later this year, Brisbane will host the leaders of the world’s biggest economies at the G20 summit. This year’s summit will focus on boosting economic growth – because stronger economic growth is the
埃里克·惠特克Eric Whitacre在TED演讲：一个2000人的虚拟唱诗班高声歌唱。 I wanted to be a rock star. I dreamed of it, and that's all I dreamed of. To be more accurate, I wanted to be a pop star. This was in the late '80s. And m
