Essentially, it means any society where slave labor where the definition of labor, where the definition of the relationship between ownership and labor is defined by slavery.

从本质上来说,它是个奴隶劳动的社会,在这个社会里劳动的内涵,以及劳动者与其劳动所有权之间的关系,都被定义为奴役

耶鲁公开课 - 美国内战与重建课程节选