来自《耶鲁大学开放课程：生物医学工程探索 第16集 第16集》

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  As I mentioned we'll talk lastly about dialysis
  正如我最后将要讨论的透析
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  which is an extraordinarily effective,
  它对于保持肾衰竭群体的身体健康
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  but not quite perfect means for keeping people
  是极其有效的
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  that have kidney failure in good health.
  但也绝非完美
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  I've shown you a picture like this,
  像这样的图片 我已经给你们展示过
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  maybe exactly this picture or a picture like this before,
  或许准确说以前展示的就是这幅图片
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  but this is sort of a block diagram
  这里是一系列的框图
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  or an engineering view of the human body.
  或者说一张人体的工程图
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  You can see the outside world is the things
  你们可以见到外部环绕
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  that surround this red and blue labeled box
  红色和蓝色标注的框的这些东西
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  and the inside of the body is inside.
  以及人体的内部在里面
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  We talked--last time we were here,
  我们讨论过 上次我们谈到这里