The river had worn away the edge of the soft rock in such a manner, as to render its first pitch less abrupt and perpendicular than is usual at waterfalls.

• 在最边上的那个斜坡处，奔腾的河水已经冲刷掉那些松软的岩石的边缘棱角，因而那儿已不象瀑布旁边大部分岩石那么峻拔陡峭。