一级理论和二级理论的区别

When the waiter heard that Ning Cheng said he wanted two jade slips, he was very happy and hurried to get the jade slips. At this time, two monks walked past Ning Cheng. One of them said, Brother Wei, someone found a semi-artifact in the ancient abandoned land a few days ago, as well as the ruins of a broken cave. Are they near the mud vortex? ? I remember you being around there during that time....