uncorroded

例句：

1. 1.The metal was uncorroded when it was first discovered.
   这个金属被发现时是未腐蚀的。
2. 2.The old boat was uncorroded and still had the original paint.
   这艘旧船未腐蚀，仍然保留了原始的油漆。
3. 3. The steel beams in the bridge were uncorroded and strong enough to support the weight of the cars.
   桥上的钢梁未腐蚀，足够坚固以支撑汽车的重量。