hippopod

例句：

1. 1.The hippo is a large mammal that lives in the savannahs of Africa.
   河马是一种生活在非洲草原上的大型哺乳动物。
2. 2. The hippo's tusks are used for medicinal purposes.
   河马的象牙被用于药用。
3. 3. Hippos are known for their gentle nature and playful behavior.
   河马以其温和的性格和活泼的行为而闻名。