About two-thirds of those went by outright sale, by financial speculation, in now a growing huge American business of the domestic slave trade.

大约有三分之二的人都被,金融投机所买断,被投入一个日益庞大的,国内奴隶贸易的美国商业市场

耶鲁公开课 - 美国内战与重建课程节选

And some fortunes will begin to be made in simple financial speculation.

一些机遇会开始于,简单的金融投机买卖

耶鲁公开课 - 美国内战与重建课程节选