一级理论和二级理论的区别

Ning Cheng looked at Jia Shisan and Xiao Bisheng again. They were not much better. In fact, he himself was just as exhausted and emaciated, looking as if he could be blown away by a gust of wind. It was only because he had the formation to block him, and was not directly absorbed by the ghost blood essence by the ghost ghost vines, and because he had the support of Xinghe, that he forgot about his situation....