来自《耶鲁大学开放课程：生物医学工程探索 第4集 第4集》

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  it would appear as one large segment instead of a large one and a smaller one.
  一大一小的结果 而只有一个大的片段
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  The absence of this smaller region tells
  小片段的缺失就能告诉你
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  you that this sample came from a sickle patient.
  该样本是取自病人的
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  You can imagine other ways of doing this,
  你也可以想出别的方法
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  or ways of doing this same thing in different ways.
  或者达到相同目的的其他途径
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  It takes advantage of the specificity of the restriction enzymes,
  这个方法利用了限制酶特有的性质
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  the fact that we know what the gene sequence that we're looking for,
  我们知道我们在找什么样的基因序列
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  and using this technological process of electrophoresis to
  从而才能利用电泳这个技术流程
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  identify changes that we predict.
  来识别出我们预计的情况
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  Yeah, this is just one particular example of how to do it,
  是的 这只是一个特定的例子
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  but you could -
  但你可以--
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  so you have to identify something
  你必须找到它