lame as a tree

例句：

1. 1. The old man is lame in one leg.
   那个老人一条腿瘸了。
2. 2. She was lame when she was young but now she's walking fine.
   她年轻时走路一瘸一拐，但现在走得好极了。
3. 3. The dog was lame after the accident.
   那只狗在那次事故后变得跛脚了。