volcanic rubble

例句：

1. 1. The volcanic eruption has caused widespread damage to the area.
   火山爆发对该地区造成了广泛的破坏。
2. 2.The volcanic ash covered the streets, making it difficult to see.
   火山灰覆盖了街道，使得视线受阻。
3. 3.The volcanic activity has been a major concern for scientists studying the region.
   科学家研究该地区时，火山活动一直是主要关注点。