腐蚀剂

例句：

1. 1. The chemical usedto remove rust is a corrosiveagent.
   用来去除锈的化学物质是一种腐蚀剂。
2. 2. The metal was severely corrodedby the acid.
   金属被酸严重腐蚀了。
3. 3. The old car engine needed to bereplaced with a new one to prevent corrosion.
   旧汽车发动机需要更换，以防止腐蚀。