来自《耶鲁大学开放课程：生物医学工程探索 第1集 第1集》

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  and you can read about pH
  就会读到什么是pH值
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  and I try to take you through sort of what you need to know
  以及为了了解接下来的内容
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  in order to understand the rest of the course material.
  我希望你们知道的相关知识
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  And if you've forgotten about proteins and what their structure is
  如果你们忘记了蛋白质及结构的相关知识
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  you can go to Chapter 4 and
  就去读第四章
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  read sort of a brief review of protein biochemistry.
  关于蛋白质生物化学的简短综述
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  In the section this week,
  本周的小组讨论
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  I'll talk about the section meetings in just a moment,
  我花一点时间说说关于小组讨论的事情
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  but there's no required section meeting this week.
  本周没有要求的小组讨论
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  During the section times I'll be available
  在小组讨论的时间里 你们可以来找我
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  if you feel like you want to read Chapters 2 and 4
  如果你们学习完第二章和第四章之后
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  and then come and ask questions,
  想问一些关于