"Hippopotamus" 英文读音为 [hɪˈpɑːpətəməs].
"Hippopotamus" 来源于希腊语，"hippos" 意为 "马"，"potamos" 意为 "河"。因此，"hippopotamus" 的意思就是 "河马"。
例句:
The hippopotamus is a large mammal that pves in Africa. (河马是生活在非洲的大型哺乳动物。)
The hippopotamus has a very thick skin to protect itself from the sun and crocodiles. (河马有很厚的皮肤来保护自己免受阳光和鳄鱼的伤害。)
The hippopotamus is known for being aggressive and dangerous to humans. (河马以其攻击性和对人类的危险而闻名。)