阶梯倍投法简介：Because the shooting was so intensive, the entire bastion city was shrouded in gunpowder smoke, and the number of defenders could not be seen at all. Only the red light of the cannons when shooting kept flashing in the white smoke.
Because the shooting was so intensive, the entire bastion city was shrouded in gunpowder smoke, and the number of defenders could not be seen at all. Only the red light of the cannons when shooting kept flashing in the white smoke.
