四个数字有多少种组合公式

简介：After several aura and identity changes, and several teleportation arrays between demon and star regions, Jin Qianlei never destroyed the teleportation array except for the first time! Because the formation wall of the Taixu battleship was about to collapse after being beaten, Jin Qianlei had no choice but to hide the Taixu battleship. Anyway, there was still poisonous gas left by the ferocious beast Emperor on it, so it was better not to use it.