Aristotle considers different relations within the household: master and slave, husband and wife, and father and children. What kind of slavery does Aristotle defend? How does he defend it?

• 亚里斯多德思考家庭中的各种关系:主人和奴隶、丈夫与妻子、父与子。亚里斯多德为哪一种关系辩护?如何辩护?