阶梯倍投方法

简介：The Crouching Tiger Cannon is similar to the mortar of later generations. It is fired at a fixed angle. Although it is not very powerful, it is more lightweight. During today's review, any carriage can pull up two or three of them, but the Shenji Battalion did not even show this superficial skill. They are all too lazy to do it. This shows how lax military discipline is. How incompetent and lazy is his general?