a large smooth mass of rock detached from its place of origin
同义词：bowlder
a town in north central Colorado; Rocky Mountains resort center and university town
boulder例句
As we bumped over the dusty track, we swerved to avoid large boulders.
我们在尘土飞扬的道路上颠簸的同时，还得东躲西让那些大石块。
It required superhuman effort to lift the huge boulder.
要搬起这块大石头需要有超人的力量。
boulder详细解释
boulder 也作 bowl.der n.（名词）A large rounded mass of rock lying on the surface of the ground or embedded in the soil.巨砾，圆石：在地表上或埋在土壤中的大而圆的岩石块 来源：Middle English bulder 中古英语 bulder [of Scandinavian origin] * see bhel- 2[源于斯堪的纳维亚语] *参见 bhel- 2
