catacombs

例句：

1. 1.The catacombs are filled with ancient artifacts and relics.
   这些地下室充满了古代的文物和遗迹。
2. 2.The catacombs were discovered during the excavation of a nearby castle.
   在附近一座城堡的挖掘过程中发现了这些地下室。
3. 3.The catacombs were once used as a burial ground for wealthy families.
   这些地下室曾经是富裕家庭安葬死者的地方。