What does 奴隶 (nú lì) mean in English?

Card 1334HSK 2010 Level 61334/2512
CARD1334
PROGRESS53%
奴隶
奴隸
nú lì
slave
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Reveal: Click/Space/Enter/↑↓/w/s/j/k•Navigate: ←→/h/l/a/d