n.河马

原形：hippo复数：hippos

The hippo is the largest land animal after the elephant.
河马是仅次于大象的陆地最大动物。
Hippos are mainly herbivores, feeding on grasses and leaves.
河马主要以草和树叶为食。
In Africa, you can often spot hippos wallowing in rivers or lakes.
在非洲，你常能在河流或湖泊中看到河马在泥浆里打滚。
Hippos have a powerful bite and can be extremely dangerous to humans.
河马有强大的咬合力，对人类极其危险。
The baby hippopotamus stays close to its mother for protection.
小河马会紧贴着母亲以获得保护。
Hippos can hold their breath for up to five minutes while submerged in water.
河马在水下可以憋气长达五分钟。
They are mostly nocturnal, becoming active at dusk and resting during the day.
河马多在黄昏时分开始活动，白天则休息。
Hippos communicate with a variety of grunts, snorts, and bellows.
河马通过各种咕噜声、喷气声和咆哮声进行交流。
Their skin secretions are believed to act as a natural sunscreen and antibiotic.
人们认为河马的皮肤分泌物可充当天然防晒霜和抗生素。
Despite their size, hippos can run surprisingly fast, reaching speeds up to 30 km/h (19 mph).
尽管体型庞大，但河马能跑得相当快，最高时速可达30公里/小时（19英里/小时）。