一级理论和二级理论的区别

Hehe, do you still remember your King of Skeletons, the mysterious killer you sent out? He has already knelt down and sang Conquer to me. As for Ye Qiu's knees, no one in the entire universe can bear my kneeling. Because this kneeling will make his body shatter to pieces, his soul will be scattered, his heart will be frightened, and he will even stop breathing....