Can't sell them west, can't sell them to the Caribbean--

不能往西卖不能卖到加勒比
international slave trade's illegal.

跨国奴隶买卖是犯法的
They're going to sell them into the Deep South.

他们会卖到南方腹地去
What happens?

然后会发生什么
The Deep South becomes more and more and more, rather quickly,

南方腹地越来越快地
a pressure cooker of increasingly large numbers of slaves and

变成一个奴隶人口不断上升的高压锅
no place to expand to.

直到无法再扩张了
Prices of slaves would continue to go down.

奴隶价格会继续走低
The value of their most precious asset was at stake,

他们最珍贵的资产价值变得很危险
as was their security, their safety.

就像他们的人身安全一样
The second reason-- and I'm going to run out of time any minute, I know.

第二个原因我马上要超时了我知道
Let me just lay these out.

我就列出来好啦