tā / jiù dú / yú / jǐ pái shuǐ / zhuān yè / yán jiū / fāng xiàng / shì / wū shuǐ / chǔ lǐ

他就读于给排水专业，研究方向是污水处理。

He majors in water supply and drainage engineering, and his research focuses on wastewater treatment.