大牢

例句：

1. 1. The prisoner was transferred to the main cell block.
   这名囚犯被转移到主囚室。
2. 2. The old man spent his last days in the dungeon.
   那位老人最后的日子是在地牢度过的。
3. 3. The criminal was sentenced to life imprisonment in the big house.
   这名罪犯被判终身监禁在大牢里。