10个人两两一组有多少个组合

简介：Zuo Liangyu picked up the dried meat, patted the soil on it, sat down cross-legged again, tore off a strip of dried meat with his teeth, chewed it carefully in his mouth, savoring the sweetness of the dried meat, with a smile on his lips: Don't worry, you Dad's feeling is never wrong, Li Zicheng is ahead of us!