贩卖奴隶

例句：

1. 1. The institution of slavery is a topic of great historical debate.
   奴隶制度是历史上的一个重大争论话题。
2. 2.The slave trade was abolished in the 19th century.
   在19世纪，奴隶贸易被废除。
3. 3.The legacy of slavery continues to haunt our society today.
   奴隶制的遗留问题至今仍困扰着我们的社会。