来自《耶鲁大学开放课程：1600年后西方社会的流行病 第14集 第14集》

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  one disease from another, and classifying them,
  并对它们进行分类
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  didn't advance much towards the idea
  认为引起疾病的致病源
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  of the causative pathogens behind them.
  并不指向菌源说的结论
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  Now, when we've talked about the Paris School,
  我们已经讨论过巴黎学派
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  I don't want to give you the idea
  我不想让你们有一种错觉
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  that all of the crucial figures in disease specificity,
  认为疾病特异性和疾病分类学的
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  and nosology, were French.
  关键人物都是法国人
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  There were other crucial figures as well.
  还有其他的重要人物
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  William Gerhard, who distinguished typhus from typhoid.
  威廉姆·格哈德区别开斑疹伤寒症和风寒
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  He had studied in Paris with Louis for a couple of years,
  他和路易斯在巴黎一起学习过几年
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  and then returned to his native Philadelphia.
  然后就回到了自己的故乡费城
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  During an epidemic of typhus,
  在办疹伤寒症的爆发中