6个数字有多少种排列方式

简介：After a moment of silence, the Bone Demon said: The city lord does not know whether he is alive or dead, so naturally we cannot betray him just like that. And without the City Lord, our strength has been greatly damaged. Whether the advent plan can continue is unknown unless you can prove with your strength that even if the City Lord is absent, you can still lead us back to the world.