Now, about roughly two-thirds of those two million slaves moved from the Eastern seaboard or the Upper South to Alabama, Louisiana, Mississippi, Texas, Arkansas, et cetera.

在这两百万奴隶中,大约有三分之二的人,是从东海岸或者上南地区,被卖到亚拉巴马,路易斯安那,密西西比,德克萨斯和阿肯色等地区

耶鲁公开课 - 美国内战与重建课程节选

Soil was being eroded and wasted along the Eastern seaboard, and they were using up the great soils of the Mississippi Valley and over time that slave system just somehow wasn't going to work out.

东部沿海地区的土地因被侵蚀而荒废掉,密西西比河谷地区的土地资源即将被耗尽,但就在这种情况下,奴隶制依然能维持南方的经济

耶鲁公开课 - 美国内战与重建课程节选