来自《耶鲁大学开放课程：有关食物的心理学、生物学和政治学 第4集 第4集》

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  Okay, so once you reach 2 000 calories
  好的 所以你一旦摄入了2000卡路里
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  you don't want to put anything else in.
  你就不会再想吃别的东西了
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  Now, by the way, there are a couple of interesting things
  现在 顺便说下 在你们的评论中有
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  embedded in your comment.
  两个令人印象深刻的有趣事情
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  One is that 2,000 calories is the average for the typical person,
  一是2000卡路里是常人所需的平均值
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  but, of course, people have greatly differing calorie needs.
  当然 人们需要的热量是大大不同的
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  Men will need more calories than women,
  男人所需的热量多于女人
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  people who are very active will need more then people who are less active, etc.
  活跃的人比安静的人需要更多的热量等等
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  Plus, there are some natural metabolic variability
  另外 这里面有自然的新陈代谢差异
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  and I'll describe that in a subsequent lecture.
  我会在随后的课堂上讲解
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  That's right. That's an example, as we talked about in the last class,
  对 如我们上节课所谈到的
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  of the act of keeping records influencing the accuracy of the records,
  这有个持续记录会影响记录准确性的例子