scraping iron

例句：

1. 1. The old man used a scraping iron to clean the car's engine.
   老人用刮铁器清理汽车发动机。
2. 2. The scraping iron was rusted and couldn't be used anymore.
   刮铁器生锈了，不能再用了。
3. 3.The scraping iron was a useful tool for cleaning metal surfaces.
   刮铁器是清理金属表面的一种有用的工具。