来自《耶鲁大学开放课程：有关食物的心理学、生物学和政治学 第19集 第19集》

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  I don't think so,
  我觉得你不会买的
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  but everyday people buy guns
  但是人们平时买的枪
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  that don't tell them that there's a round in the chamber,
  却不能提示他们枪膛里是否有子弹
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  a bullet in the gun,
  枪里是否有子弹
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  even though the device that would tell you is
  尽管这个能提示你的仪器是
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  something that was patented more than a century ago
  一百年前就获得专利的东西
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  and would cost less than a dollar to put on guns,
  并且这个设备花不到一美元便可安在枪上
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  and some guns have it
  有的枪上已经有这个装备
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  so it's imminently technologically feasible.
  所以说这是技术上绝对可行的
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  Or there's something called a magazine disconnect device,
  或者安装一个弹夹分离设备
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  where if you take out the magazine as Stephen did,
  当你像斯蒂芬一样卸掉弹夹时
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  even though there's still a round in the chamber,
  尽管手枪里没有了弹夹