Earth's Ears

After walking for a while, it was completely different from the entrance. Stone bells, stalagmites, and potholes were everywhere. If he wasn't careful, Liu Jianguo would be thrown off his back. He supported a stalagmite beside him, stood up reluctantly, and walked inside with great difficulty. Half an hour later, the road conditions had not improved. , But a person wearing the same clothes as himself appeared in front of him. Liu Jianguo tentatively called out "Liu Zhongwei! Liu Zhongwei?" Not only did he not agree, but he also imitated "Liu Zhongwei! Liu Zhongwei?" Liu Jianguo was so frightened that his hair stood up, and he couldn't help but wonder, what kind of dirty thing is this?