fin rot

例句：

1. 1. The fisherman's net had caught a lot of fish, but the fin rot was starting to show.
   渔民的网捕获了很多鱼，但鱼鳍开始腐烂了。
2. 2.The old boat was in poor condition, with fin rot affecting its stability.
   这艘旧船的状况很差，鱼鳍腐烂影响了它的稳定。
3. 3.The scientist discovered that fin rot is caused by a bacteria that feeds on fish flesh.
   科学家发现，鱼鳍腐烂是由一种细菌引起的，这种细菌以鱼肉为食。