For every person who has less than the median amount of life, there's another person who has more than the median amount of life.

对于活得比平均寿命短的人来说，有一个人,活得比平均寿命长。

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But we might then wonder, for every person who gets less than the average amount of life-- suppose we take the median, take the amount of life that's exactly, 50 percent of the people get more, 50 percent of the people get less.

但是接着我们可能会想，对于所有活得比平均寿命要短的人-,假设我们取中间数，相对于平均寿命，刚好五成的人活得更长，五成的人活得更短。

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