a ruined castle的用法和样例：
- Ivy had crept over the ruined castle walls.
- We heard a weird shriek from the darkness of the ruined castle.
- He's bought a ruined cottage at the back of beyond.
- He dwelt in a ruined cottage on the hillside.
- That is the prelude to a ruined evening.
- I was ruined by that law case; I'm a ruined man.