来自《耶鲁大学开放课程：金融市场 第7集 第7集》

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  it must have been new information about things
  那么就一定存在关于某些事情的新信息
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  that just didn't happen.
  而这些事情从未发生
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  It could be that an asteroid almost struck the Earth
  有可能是一颗小行星差点撞上了地球
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  and then it just missed and so the stock market crashed.
  但最终擦肩而过 于是股市先是发生崩盘
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  Then when it missed it came back up again,
  而在彗星消失后 股市又重新反弹
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  so we don't see any interruption in dividends.
  所以我们看不到到红利支付有所间断
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  But it has to be something like that.
  但是一定会有一些诸如此类的事情
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  The problem is,I can't think of anything like that.
  问题是 我不能想到像这样的任何事情
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  I don't think that any asteroid came close to the Earth
  我不认为以前有彗星靠近过地球
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  --not close enough to be worried about
  起码没有近到令人担心的程度
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  --and I can't think the communist revolution had much chance of
  我也认为共产主义革命不太可能
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  taking place in the United States
  在美国生根发芽