tin lstre

例句：

1. 1.The old car has a lot of tin lstre on the body.
   这辆旧车车身有很多铁锈。
2. 2. The metal was severely corroded by the acid.
   金属被酸严重腐蚀了。
3. 3. The rusty nails were difficult to remove.
   生锈的钉子很难拔出来。