“圆石头”用英语怎么说？

这头冒失的秃头熊打了在圆石头上的冒失的秃头熊,把圆石头上的冒失的秃头熊揍得使劲吼.On the shoulder on the boulder And made the bold bald bear on the boulder bawl.姊妹俩一路走着,经过一块空地,地上布满了无数很大的圆石头.Their road led them across a bare stretch of land strewn with boulders ...