finned

动词 fin:

1. equip (a car) with fins
   同义词：fin
2. propel oneself through the water in a finning motion
   同义词：fin
3. show the fins above the water while swimming
   同义词：fin, break water

1. The shark's fin sliced the water.
   鲨鱼的背鳍像刀样迅速划破水面。
2. The fish's tail fin was hurt.
   这条鱼的尾鳍受伤了。
3. The shark's dorsal fin was cut off by the fisherman.
   鲨鱼的背鳍被渔夫割了下来。

finned

adj.（形容词）
Having a fin, fins, or finlike parts. Often used in combination:
有鳍的：有鳍或鳍状的。常用于复合词中：
例句：
single-finned; multifinned.
单鳍的；多鳍的