单双循环问题公式简介：Uncle Pan did not leave, but took Qin Min for a walk on the Central South Campus, accompanied by a girl with long black hair and straight hair. She and Qin Min should be good friends, but I don't know the details.
Uncle Pan did not leave, but took Qin Min for a walk on the Central South Campus, accompanied by a girl with long black hair and straight hair. She and Qin Min should be good friends, but I don't know the details.
