一开始，主要是卖柠檬水的小贩售卖咖啡，当时咖啡被认为是有药用效果的饮料。

At first coffee was mainly sold by lemonade 11 vendors and was believed to have medicinal qualities.

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例如，股票的交易所价格开始下跌时，一个高频交易者可能提交一个大卖单给资金暗池从而锁定当时的高价。

An HFT might, for instance, lock in a high price by submitting a large sell order to a dark pool just as the exchange price of a share begins to fall.

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然而，一些当地奶农，比如43岁的傅鹏，当时在外地经商，私下卖奶给市外的买家。

However, some local dairy farmers, such as 43-year-old Fu Peng, were taking their business elsewhere, secretly selling milk to buyers outside the city.

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The idea was that it was difficult to sell people on insurance.

这是因为当时将寿险卖出去是很困难的

耶鲁公开课 - 金融市场课程节选

And I worked with that account book, because one of the two slaves I write about in this new book called A Slave No More I publish their two narratives was indeed a young 14-year-old teenager, sold out of North Carolina--from Snow Hill, North Carolina, he was sold in 1860 to Hector Davis in Richmond.

我研究过这本账簿,因为我在这本新著《从奴隶到自由》中,引用了两名奴隶的自述,当时他们年仅十四岁,其中一个从北卡罗来纳州,从北卡罗来纳的斯诺希尔被卖掉,在1860年被卖给了,里士满的赫克托·戴维斯

耶鲁公开课 - 美国内战与重建课程节选