为山前平原上的侵蚀孤丘，海拔约80多米。

For the piedmont plain on erosion solitary mound, at an altitude of approximately 80 meters.

youdao

为山前平原上的侵蚀孤丘，海拔约80多米。

For the piedmont plain on erosion solitary mound, at an altitude of approximately 80 meters.

youdao