戒指内侧有一层厚厚的锈斑。The tarnish lay thick on the inside of the ring.请擦去刀上的锈斑.Please scour rust spots from the knife.这些锈斑可能是由于在海上受潮引起的.Maybe the rust stain is due to dampness at sea....

“锈斑”的拼音为：xiù bān...

“锈斑”的英语可以翻译为：ust，pitting，rusty spot ...