四个数字有多少种组合方式

简介：In the dark night, the sound of horse hooves stepping on the bluestone road in Tongzhou was like thunder, and the sound of killing and the light of fire at the top of the city made every cell in Adali's body jump. His eyes were always staring ahead, sandwiched between The horse speeds up, with only one thought in mind: kill through the wooden gate and capture the mentaiko alive!