来自《耶鲁大学开放课程：1600年后西方社会的流行病 第12集 第12集》

• 
  
  Welcome back.
  欢迎回来
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  And what I want to do this morning
  今早这节课
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  is to be cognizant of the fact that you have,
  我要提醒大家 几天后我们就要测验了
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  as you all know, the hour exam later this week.
  我在电子邮件中已经说过
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  It's in a different format, and I've written to you about that.
  这次测验的形式与往常不同
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  Because of that,
  所以
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  what I thought would be useful to do
  我觉得有必要
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  this morning would be to have something of a review session,
  利用这节课来复习一下
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  in which we make explicit some of the ways
  把一些有用的