来自《耶鲁大学开放课程：1600年后西方社会的流行病 第10集 第10集》

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  Cholera was never responsible for the kind of demographic catastrophe
  霍乱从来都不是欧洲经历过的
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  that Europe experienced with the Black Death,
  如后来肆虐的黑死病所带来的
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  or later invasions of bubonic plague.
  人口统计学上的灾难的罪魁祸首
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  In the nineteenth century,
  在十九世纪
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  Europe experienced a major population growth,
  欧洲经历了一个人口增长期
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  and cholera had little impact on the population surge.
  而霍乱对人口增长影响甚微
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  Let's take again the example of Naples,
  我们继续用那不勒斯做例子
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  a city famous for its overcrowding,
  这是一个以拥挤肮脏和
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  its filth and its recurring epidemics of Asiatic cholera.
  不断爆发霍乱而闻名的城市
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  Let's compare it also with an earlier experience of bubonic plague.
  我们比较这和该城之前爆发腺鼠疫的情形
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  Naples experienced a terrible epidemic of plague in 1656.
  那不勒斯在1656年经历了可怕的瘟疫
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  At that time the city had about a population numbering
  当时的城市人口