巨砾，圆石：在地表上或埋在土壤中的大而圆的岩石块些美国现代作曲家。

Boulder: also bowlder, a large rounded mass of rock lying on the surface of the ground or embedded in the soil.

youdao

巨砾，圆石：在地表上或埋在土壤中的大而圆的岩石块些美国现代作曲家。

Boulder: also bowlder, a large rounded mass of rock lying on the surface of the ground or embedded in the soil.

youdao