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更新日期:2026-08-14
take classes in进修……的课程;上……之课:Young technicians made unremitting efforts to improve themselves,after a day’s toilsome work they went to a sparetime academy and took classes in mechanical engineering there.青年技术人员自强不息,在一天的劳累工作以后,他们还去一个业余学校进修机械工程的课程。