层进式阶梯倍投法实例简介：She Hong: Master, we are all famous people on Huludao, but what is this kid’s background? Is it because we are ignorant or is this guy just not famous at all?
She Hong: Master, we are all famous people on Huludao, but what is this kid’s background? Is it because we are ignorant or is this guy just not famous at all?
