腿臀部

例句：

1. 1. The hippo is a large mammal that lives in African rivers and lakes.
   河马是一种生活在非洲河流和湖泊的大型哺乳动物。
2. 2. Hippos are known for their long necks and powerful jaws.
   河马以其长脖子和强壮的颚部而闻名。
3. 3. Many people visit zoos to see these fascinating animals up close.
   许多人参观动物园，近距离观看这些迷人的动物。