save sb.'s bacon

例句：

1. 1.The doctor saved my life when I fell ill.
   医生救了我一命。
2. 2. He saved the day by solving the puzzle.
   他通过解决谜题挽救了局面。
3. 3. The firefighters saved many lives in the disaster.
   消防员们在灾难中挽救了许多生命。