craterwall

例句：

1. 1. The crater wall is covered in a thick layer of ash.
   火山口壁覆盖着一层厚厚的灰烬。
2. 2.The scientists studied the crater wall to learn more about the eruption.
   科学家们研究了火山口壁，以了解更多关于喷发的信息。
3. 3.The crater wall was formed by the collapse of the mountain.
   火山口壁是由山体崩塌形成的。