They were the same size in the 1850s, but Brive gets the railroad and not Tulle, the railroad from Paris.

它们在十九世纪五十年代还是一样大的,但是布瑞福修了铁路,而不是图勒,通往巴黎的铁路

耶鲁公开课 - 1871年后的法国课程节选

Richmond, Virginia, for example, became a huge slave-trading center by the 1840s and 1850s.

比如里士满和弗吉尼亚,在十九世纪四十年代和五十年代,它们成为了巨大的奴隶贸易中心

耶鲁公开课 - 美国内战与重建课程节选

Until the teens, telephones were very expensive because they didn't have good amplification technology.

在20年代之前,电话还是奢侈品,因为它们还没有增强讯号技术

耶鲁公开课 - 金融市场课程节选