Complex sentence: He received his B.A degree from Jilin University in 1984, and his LL.M degree from Renmin University of China Law School in 1987, after which he joined the faculty of Renmin University Law School.
Split into simpler sentences: He received his B.A degree from Jilin University in 1984, LL.M degree from Renmin University of China Law School in 1987. Then he joined the faculty of Renmin University Law School.