来自《耶鲁大学开放课程：金融理论 第1集 第1集》

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  So all the buyer prices are in blue, forty-four,
  买价都是蓝色的 四十四
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  forty, thirty-six, you should recognize these you buyers,
  四十 三十六 买家们能认出这些
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  and the red ones were the sellers.
  红色的是卖家的卖价
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  So you notice that every seller, for everybody
  你们注意到没
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  there's a seller who's underneath.
  总有一个人价格在其他卖家之下
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  So it could have happened that thirty-eight sold to forty-four,
  所以三十八的东西卖了四十四
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  and thirty-four sold to forty at thirty-seven,
  三十四的东西卖了三十七
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  and twenty-eight sold to thirty-six at thirty-two.
  二十八的东西卖了三十六或三十二
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  You could have had eight trades.
  你们本能完成八笔交易
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  so what did happen?
  怎么回事呢
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  Nothing like that happened.
  以前从没这样过
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  You had five trades, five pairs of people traded,
  你们只完成了五笔 五对人交易成功