大小单双导师带赚简介：Although the theory class was boring, Qin Fen and others still calmed down and listened carefully, because the world does not lack reckless people, but smart people. Only smart people can live longer.
Although the theory class was boring, Qin Fen and others still calmed down and listened carefully, because the world does not lack reckless people, but smart people. Only smart people can live longer.
