slav·e·ry /ˈsleɪvəri/ ●○○ noun [uncountableU] 1 SSthe system of having slaves 奴隶制度 attempts to abolish slavery (=officially end it) 废除奴隶制的努力
2 SSLOW POSITION OR RANKthe state of being a slave 奴隶身份sell somebody into slavery (=sell someone as a slave) 把某人卖为奴隶