负盈利套利打法简介：Just sitting in the corner, watching the mecha battle in the central arena, listening to the conversations around him, and slowly drinking a small drink, Qin Fen seemed very comfortable at this time.
Just sitting in the corner, watching the mecha battle in the central arena, listening to the conversations around him, and slowly drinking a small drink, Qin Fen seemed very comfortable at this time.
