阶梯倍投方法简介：Xiao Xiaobai, who looked a little straight-eyed, turned around and coughed softly as if to cover up: "Hey, Mr. Liu, um, you go to the bed and lie down first!"
Xiao Xiaobai, who looked a little straight-eyed, turned around and coughed softly as if to cover up: "Hey, Mr. Liu, um, you go to the bed and lie down first!"
