ferroxplana

例句：

1. 1.The rust on the metal surface is a sign of corrosion.
   金属表面的锈迹是腐蚀的标志。
2. 2. The rusting of iron and steel is a common problem in construction.
   钢铁的生锈是建筑中常见的问题。
3. 3.The rusted nails were removed to repair the wooden floor.
   为了修理木制地板，需要将生锈的钉子取出来。