iletin

例句：

1. 1. The old iron door is coveredin a thick layer of rust.
   那扇旧铁门上覆盖着厚厚的一层锈。
2. 2.The car's engine was rustedout after years of neglect.
   这辆车的引擎在多年忽视后已经生锈了。
3. 3. Themetal surface has developed a rusty patina over time.
   金属表面随着时间的推移已经形成了一层锈迹斑斑。