来自《耶鲁大学开放课程：新生有机化学 第4集 第4集》

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  and when they went down,
  当他们在水下时
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  if a breeze came up and ruffled the surface,
  如果微风吹皱了水面
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  which made it hard to see
  阻碍了光线的透过
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  because the light wouldn't come through clearly,
  就会模糊潜水者的视线
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  then they'd let oil out of their mouths
  因此他们就会吐出一点油
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  that would float to the surface, stop the ripples,
  油会漂浮到水面从而消除涟漪
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  and they could see to get their pearls.
  他们就更易采得珍珠
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  This is what Pliny said. Right?
  这是普林尼的想法
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  But he said he smiled at that,
  但富兰克林说他嘲笑过这想法
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  what a quaint thing to think;
  是不是很奇怪
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  it's like the occult chemists.
  就像一个神秘的化学家
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  "I think that it has been of late too much the mode
  "我认为近来轻视古人智慧的趋势