scyphozoan

例句：

1. 1. Scyphozoans are found in the deep ocean.
   海鞘类动物存在于深海。
2. 2. The scyphozoan was a popular tourist attraction.
   这个海鞘类动物曾是热门的旅游景点。
3. 3.Scyphozoans have been used as a food source for centuries.
   海鞘类动物自古以来就被用作食物来源。