一级理论和二级理论的区别

Ning Cheng nodded, and the consciousness explosion suddenly blasted out, directly pressing against You Xi's consciousness. He and You Xi had a deep hatred as deep as the sea, and there was nothing to worry about. Facing a Hejie Dao Lord, Ning Cheng never thought of quitting. He could see that You Xi's strength was not stronger than Zeng Laifu's, or even weaker....