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I'm sure that, throughout the hundred-thousand-odd years of our species' existence, and even before, 我十分确信在人类诞生以来的大概10万多年,甚至比这更长的时间里 our ancestors looked up at the night sky, and wondered what
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Hi, everybody. This week, we made it official -- I'm going to Cuba. When Michelle and I go to Havana next month, it will be the first visit of a U.S. president to Cuba in nearly 90 years. And it build
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So if I’ve got one message, my message is now is the time to invest in America. Now is the time to invest in America. (Applause.) Today, American companies have nearly $2 trillion sitting on the