weathered rock

例句：

1. 1. The old castle was built ona site that had been weathered overcenturies.
   这座古老的城堡建在一个历经数百年风化的地点上。
2. 2. Theriverbed is covered inweathered rocks and pebbles.
   河床覆盖着风化的岩石和卵石。
3. 3. The weathered rockformations are a natural wonder of thearea.
   这些风化岩石的形成是该地区的一个自然奇观。