这些可能是风沙侵蚀的标志，风沙侵蚀让这一地区变得非常平坦。

These could be an indication of erosion by fine dust particles carried on the wind, sandblasting the plateau smooth.

youdao

这些可能是风沙侵蚀的标志，风沙侵蚀让这一地区变得非常平坦。

These could be an indication of erosion by fine dust particles carried on the wind, sandblasting the plateau smooth.

youdao