ceratophore

例句：

1. 1. The octopus has eight arms, each with a pair of long, flexible tentacles.
   八条手臂，每条都有一对长而灵活的触手。
2. 2. The crab uses its claws to dig for food in the sand.
   螃蟹用它的爪子在沙子里挖食物。
3. 3.The fish swims using its fins, which are like the arms of a human being.
   鱼用鳍游泳，就像人的手臂一样。