3d跨度怎么算最准确秘籍

简介：After leaving the customs in despair and lacking supplies, the long winter will be a life and death crisis for the Mongols. Many people will die in this winter with a lack of medical treatment and medicine. Under force, the Mongols will definitely take risks and plunder the Ming Dynasty. The border, and they border Xuanfu and Datong, will be key defense areas.