挂机倍投方案设计简介：Cheng Keshu was carefully organizing the homework books on the podium. She was a study committee member. When the class representatives of some subjects were too busy, Cheng Keshu would also help.
Cheng Keshu was carefully organizing the homework books on the podium. She was a study committee member. When the class representatives of some subjects were too busy, Cheng Keshu would also help.
