7个数字3个为一组有多少组简介：In close combat, the officers and soldiers had lost the advantage of using firearms to kill the enemy. As the fierce battle progressed, the mines used by the officers and soldiers gradually became in short supply.
In close combat, the officers and soldiers had lost the advantage of using firearms to kill the enemy. As the fierce battle progressed, the mines used by the officers and soldiers gradually became in short supply.
