a lame back的用法和样例：
- A lame back.
- Oversleeping is a lame excuse for being late.
- He gave a lame excuse for being absent.
- He would always help a lame dog over the stile, that was his boast.
- He would always help a lame dog over a stile, that was his boast.
- The nurse was rubbing away at my lame back.
a lame back的相关资料：