负盈利套利技术打法6打4

简介：Dong Shitou saw his little sister being thrown out by the bald donkey and lying still on the ground far away. He immediately shouted in distress and tears couldn't help but burst out of his eyes. His sister Dong Xiaocao was his only concern in the world. The two of them had been together since childhood. We depend on each other for life, and now if something happens to his sister because of him, Dong Shitou will definitely not be able to forgive himself.