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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  that I'd like to talk to you about.
  想告诉大家
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  First is the body mass index,
  首先是体重指数[BMI]
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  you're going to see this a lot
  我们会经常碰到这个概念
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  and you--some of you probably know about it already
  你们也许已经知道这个概念了
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  because it's out there in the popular literature.
  它经常在科普读物中出现
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  It tends to be a better predictor of how much body fat
  相较体重而言 BMI能更好地预测
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  a person has then just using their weight and
  一个人体内的脂肪含量
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  I'll talk more about body mass index in a subsequent class,
  在以后的课里我还会讲到体重指数
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  but it's basically weight over height squared
  它就是体重除以身高的平方
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  in metric units,
  身高以米为单位
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  so it's weight in kilograms over height in meters squared,
  也就是公斤体重除以米身高平方
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  and you come away with numbers in the teens,
  得到十几