freirinite

例句：

1. 1. The old car's engine is starting to show signs of freirinite.
   这辆旧车发动机开始出现生锈的迹象。
2. 2.The paint on the old house has turned into a beautiful freirinite pattern.
   那所老房子上的油漆变成了一个美丽的锈迹图案。
3. 3. To prevent rust, we need to regularly clean and oil our metal objects.
   为了防止生锈，我们需要定期清洁和润滑我们的金属物品。