4399生死狙击死亡射线如何使用？生死狙击死亡射线使用方法？ 答：按“2”切换到死亡射线攻击状态，然后按“3”可再次切换回近战状态;
4399 life and death sniper death ray how to use? The use of death ray method for life and death? Answer: according to the "2" switch to the death ray attack state, then press the "3" again to switch back to melee state;
