the huge crater of Vesuvius 巨大的维苏威火山口
a bomb crater 炸弹坑
With a good telescope, you can see craters on the moon. 用好的望远镜能看到月亮上的环形山。
Compare: abyss (HOLE) canyonchasmcleftcrevassedefile noun gorge noun (VALLEY)gulf (AREA) gullyravineriftsinkhole noun (HOLE)