对名义上自由的人群的永久压迫
对名义上自由的人群的永久压迫
The permanent oppression of a nominally free group of people
一种互利共生形式,一个物种被迫为另一个物种执行任务,但双方均受益
A form of mutualism in which one species is forced to perform tasks for another, for their mutual benefit
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