hippo

例句：

1. 1. Hippos are found in the savannahs of Africa.
   河马生活在非洲的草原上。
2. 2. The hippo is a large, herbivorous mammal.
   河马是一种大型的食草哺乳动物。
3. 3. The hippo's long trunk helps it to move through the water.
   河马的长颈子帮助它在水中移动。