farctate

例句：

1. 1.The old car has developed a lot of iron rust over the years.
   这辆旧车多年来已经积累了很多铁锈。
2. 2. The rusty nails on the fence are holding up poorly.
   篱笆上的生锈钉子支撑得不好。
3. 3.The rusted metal was badly corroded by the acid rain.
   被酸雨严重腐蚀的金属锈迹斑斑。