四期三期必开一期是什么

简介：But the artillery was too heavy. Although the horse-drawn men pushed it, most of the artillery fell behind after three consecutive nights of marching. Li Shun had to abandon the heavy artillery and march forward with only some light artillery. . Sometimes when walking too slowly and encountering potholes, he, the deputy general of the Shenji Battalion, had to jump off his horse and push the cannon together with the soldiers.