live by one's wits

例句：

1. 1. He decidedto live by his wits and notrely on others for guidance.
   他决定依靠自己的智慧生活，不依赖他人指导。
2. 2. Shelived off her wits and managed tosurvive in the harsh conditions.
   她依靠自己的智慧生活，在恶劣的条件下生存下来。
3. 3. Theold man lived on his wits andnever gave up hope.
   这位老人依靠自己的智慧生活，从未放弃希望。