tetragyre

例句：

1. 1.The tetragyre is a mythical creature that lives in the ocean depths.
   四头蛇是一种神话中的生物，生活在海洋深处。
2. 2. The tetragyre was said to have the power to control the tides.
   据说四头蛇具有控制潮汐的力量。
3. 3. The tetragyre was hunted by sailors for its supposed ability to bring bad luck.
   渔民们曾因四头蛇的传说而捕猎它，认为它能带来厄运。