进一退二法倍投法详解简介：As soon as Qin Fen came down from the main peak of Class 3, he met Qin Mei'er who was speeding towards her. At this time, Qin Mei'er stepped on a hoverboard and was in front of Qin Fen in an instant.
As soon as Qin Fen came down from the main peak of Class 3, he met Qin Mei'er who was speeding towards her. At this time, Qin Mei'er stepped on a hoverboard and was in front of Qin Fen in an instant.
