octactine

例句：

1. 1.The octopus is a fascinating creature with eight arms.
   八爪鱼是一种令人着迷的生物，有八条手臂。
2. 2.Octopuses are known for their ability to change color and blend in with their surroundings.
   八爪鱼以其变色和与周围环境融为一体的能力而闻名。
3. 3.Octopuses are important predators in the ocean ecosystem, controlling populations of smaller fish.
   八爪鱼是海洋生态系统中的重要捕食者，控制着较小鱼类的数量。