scyphoid

例句：

1. 1. The scyphoid is a small creature that lives in the ocean.
   水母是一种生活在海洋中的小型生物。
2. 2.The scyphoid has a long, slender body and a mouth at the end.
   水母有一个长长的细身体和一个在末端的嘴巴。
3. 3.The scyphoid uses its tentacles to capture prey and defend itself against predators.
   水母使用它的触角来捕捉猎物并保护自己免受捕食者的伤害。