921计划投入简介:On one side of the cave, there are several extremely thick wooden ridges, which look like the roots of some trees deep in the ground. It’s just that the root system is so thick, I don’t know how tall the tree must be.
On one side of the cave, there are several extremely thick wooden ridges, which look like the roots of some trees deep in the ground. It’s just that the root system is so thick, I don’t know how tall the tree must be.