他在19世纪50年代后期力促奴隶贸易的复兴，并提出了一种他称之为担保主义的理论。

He urged the revival of the slave-trade in the late 1850s, and he developed a theory of what he called warranteeism.

youdao

直到今天两个地区间仍会就南部脱离奴隶制度保护州的权利以及自由贸易权利产生争执不下。

To this day there is an argument raging between the two areas over whether the south seceded to maintain slavery or to protect states' rights, and the idea of free trade.

youdao

直到今天两个地区间仍会就南部脱离奴隶制度保护州的权利以及自由贸易权利产生争执不下。

To this day there is an argument raging between the two areas over whether the south seceded to maintain slavery or to protect states' rights, and the idea of free trade.

youdao