来自《耶鲁大学开放课程：金融市场 第16集 第16集》

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  and then there were two coins--either shillings or guineas
  这时就有了两种硬币 先令和几尼
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  --that was the money at the time.
  这就是那时的货币
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  Then, the problem was that the price--relative price of those two
  问题是这两种硬币的相对价格
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  --was not really fixed by the government.
  事实上并非由政府确定
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  So, it started to drift and people started to think,
  当兑换率开始浮动 人们也开始盘算
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  I think a guinea is worth more than twenty shillings
  我认为一几尼比二十先令值钱
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  and the market price drifted up to twenty-one shillings.
  于是几尼的市场价格升至二十一先令
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  So, the government was upset--of the U.K.
  这令英国政府感觉困扰
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  We wanted this to be a twenty shilling coin,
  他们本希望一几尼等值于二十先令
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  but now in the market it's trading at twenty-one.
  但它现在的市价已是二十一先令
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  Then they implemented a rule that
  随后他们实施了一项规定
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  the guinea is worth twenty-one shillings.
  即一几尼等于二十一先令