Tā de fùmǔ dāngnián dōu zài rénmín gōngshè láodòng.
His parents both worked in the people's commune in those days.
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history
In China, 人民公社 (People's Communes) were the basic administrative units in rural areas from 1958 to the early 1980s, central to Mao Zedong's Great Leap Forward policy.