来自《耶鲁大学开放课程：心理学导论 第10集 第10集》

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  and compare a watch to the eye
  为眼睛 并将其作对比
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  and noticing that a watch and the eye contain multitudes of parts
  他注意到手表和眼睛都是由多部分组成
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  that interact in complicated ways
  并且各部分之间以复杂的方式相互作用
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  to do interesting things.
  产生有趣的效应
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  In fact,
  事实上
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  to change and to update the analogy a little bit,
  如果把这个类比稍稍变化升级一下
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  an eye is very much like a machine known as a camera.
  眼睛和照相机非常相像
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  And they're similar at a deep way.
  许多地方也异常类似
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  They both have lenses that bend light
  它们都有折射光线的镜头
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  and project an image onto a light-sensitive surface.
  并把图像投射到一个感光面上
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  For the eye the light-sensitive surface is the retina.
  对眼睛来说 感光面是视网膜
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  For the camera it's the film.
  对相机来说是胶片