tā / zài / dà / xué / zhǔ / xiū / jī / xiè / gōng / chéng / bì / yè / hòu / jìn / rù / qì / chē / háng / yè

他在大学主修机械工程，毕业后进入汽车行业。

He majored in mechanical engineering in college and entered the automotive industry after graduation.