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奥巴马每周电视讲话:总统就伊朗核协议发表讲话
This week, the United States and our international partners finally achieved something that decades of animosity has not – a deal that will prevent Iran from obtaining a nuclear weapon. 本周,美国和我们的国际盟友们
Ted英语演讲:告女性说:约翰娜·布莱克利:社交传媒和性别消失
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TED演讲之面对灾难:为什么要留在切尔诺贝利?因为它是家!
Three years ago, I was standing about a hundred yards from Chernobyl nuclear reactor number four. 三年前,我站在距离切尔诺贝利第四号核子反应炉大约一百码外。 My Geiger counter dosimeter, which measures radiation, was going berserk
The Urgency of Getting This Right
THE PRESIDENT: Good afternoon, everybody. I just concluded结束,推断 a meeting with members of my national security team, including those from our intelligence, homeland security and law enforcement agenci