九个数字复式三种三多少组

简介：Yan Yingyuan pushed the door open and entered, closed the door, hung up the knife, and stirred up the charcoal for his mother. Then he came to his mother's bed, sat on the horse and said hello. The mother and son were chatting, and Yan Yingyuan didn't mention the expedition tomorrow at all, but Yan's mother felt it. Going on an expedition again? Yan Mu asked.