锈的

例句：

1. 1. The old car was covered in rust.
   这辆旧车满是锈迹。
2. 2. The metal parts were severely corroded by the acid.
   金属部件被酸严重腐蚀了。
3. 3. Rust is a common problem on boats that are not properly maintained.
   不进行适当维护的船只上常见的问题是生锈。