Tā dàxué qījiān yīzhí qíngōngjiǎnxué, zìjǐ zhēng xuéfèi.
He worked part-time throughout college, earning his own tuition.
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history
勤工俭学 originally referred to a movement in the early 1900s where Chinese students went to France to work and study. Zhou Enlai and Deng Xiaoping were among the participants.