砂丘相对平坦或有波状起伏的覆草沙地，通常在海岸边。

Relatively flat or undulating sandy turf-covered ground usually along a seashore.

youdao

砂丘相对平坦或有波状起伏的覆草沙地，通常在海岸边。

Relatively flat or undulating sandy turf-covered ground usually along a seashore.

youdao