来自《耶鲁大学开放课程：1600年后西方社会的流行病 第11集 第11集》

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  that is to say, the danger and the miasma was,
  也就是说 疾病的威胁和臭气
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  if we like, fermenting beneath the streets of the city.
  都是在街道下面发酵后形成的
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  So, you want to place a greater distance
  因此 必须在生活在上面的人
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  between the population living above
  和从下面产生的有毒瘴气之间
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  and the poisonous effluvia arising from below.
  隔出更大的距离
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  And, so, the aspiration was to raise the level of the streets
  由此便产生了将街道水平线
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  to the second storey of the houses.
  上升至住宅的第二层楼高的愿望
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  And there would be, if you like,then a massive cushion,
  这样做便是在城市人口
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  including the mortar of the streets themselves,
  与潜伏的有毒的
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  between the population of the city
  地下水之间
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  and the danger lurking in the groundwater beneath the soil.
  垫了一个包括街道本身的垫子
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  In addition, the idea was that you would
  还有就是