来自《耶鲁大学开放课程：金融市场 第7集 第7集》

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  The Statue of Liberty stands on a tall edifice;
  自由女神像建在一个高台上
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  we're not counting that
  我们不计算高台的重量
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  but we're counting also the steel reinforcing
  但是我们需要计量其钢筋强化结构的重量
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  that they put in a few years ago.
  钢筋强化是几年前安装的
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  Remember,the Statue of Liberty was getting weak
  要记住 自由女神像变得越来越脆弱
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  and they were worried that something might topple down,
  政府担心某些部分会坍塌
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  so they reinforced it
  所以他们对它进行了加固
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  and we're counting that.
  所以加固部分也要计算在内
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  So, it's a copper structure with steel reinforcement.
  现在自由女神像是钢筋强化的铜像
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  Can you write down on your notes a range within
  你们能在纸上写出一个范围
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  which you're 90% sure
  并以90%的概率肯定
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  that the statue weighs,
  雕像重量落在此范围之内吗