a worn-out age的用法和样例：
- She dropped into a chair, utterly worn out.
- Much better therefore to take advantage of his current struggles with what appeared to be a worn out, duff set.
- It is dangerous that many people view integrity as having little more value than a worn out boot.
- She was worn out after a day's walk.
- I was worn out after a day of shopping.
- Nowadays most of his songs are written on a worn out acoustic guitar, and his main influences include The Ramones and Elvis Presley.