题目

这一段译成中文是什么意思?
For although treatment did vary,it generally worked out cheaper for owners to work slaves to death and import new ones,rather than to look after those already on the plantations.
上文是“Before the 1760s,plantation life was particularly brutal.”
下文是“John Newton was once a slave ship captain and later campaigned against the slave trade.”

提问时间：2021-04-01

答案

（奴隶们）尽管受到的待遇不同,但是通常来说,把老奴隶累死以后再引进新奴隶的做法比善待那些种植园的奴隶要经济实惠很多.
上文：在18世纪60年代以前,种植园对奴隶非常残酷
下文：约翰*牛顿曾经是一艘运奴船的船长,后来投身于打击奴隶贸易的事业.