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奥巴马讲话 美国当前在伊拉克的行动
This week, I authorized two operations in Iraq. First, I directed our military to take action to protect our American diplomats and military advisors serving in the city of Erbil. In recent days, terr
TED演讲之伟大预言 马丁·里斯:这是我们最后的世纪吗?(8)
The planet became an intense emitter of radio waves -- the total output from all TV and cell phones and radar transmissions. 地球开始发射出强烈的电磁波 - 其来源是所有的电视,手机和雷达信号传输。 And something else happened. Metallic
扎克伯格2017哈佛毕业演讲(6)
So first, let's take on big meaningful projects. 首先,让我们来说说做有意义的项目。 Our generation is gonna have to deal with tens of millions of jobs replaced by automation like self-driving cars and trucks. 我们这一代将不得
奥巴马总统在中期选举后首个记者会上的讲话
THE PRESIDENT: Good afternoon, everybody. Have a seat. Today, I had a chance to speak with John Boehner and congratulated Mitch McConnell on becoming the next Senate Majority Leader. And I told them b