Frogs are special animals called amphibians.
青蛙是一种特殊的动物，叫做两栖动物。
They can live both in water and on land.
它们既能生活在水里，也能生活在陆地上。
Frogs go through different stages in their life cycle.
青蛙的一生会经历不同的阶段。
When they are young, they are called tadpoles.
小时候，它们被称为蝌蚪。
Tadpoles hatch from eggs and live in the water.
蝌蚪从卵中孵化，生活在水里。
They have tails and breathe through gills, just like fish.
它们有尾巴，并用鳃呼吸，就像鱼一样。
As they grow, they start to change.
随着生长，它们开始发生变化。
Their legs begin to grow, and their tails get smaller.
它们的腿开始长出来，尾巴逐渐变小。
They also develop lungs so they can breathe air.
它们还长出了肺，可以用肺呼吸空气。
When the tail disappears, the tadpole becomes a frog.
当尾巴完全消失后，蝌蚪就变成了青蛙。
Adult frogs can live both in water and on land.
成年青蛙既能生活在水里，也能生活在陆地上。
They breathe through their lungs and their skin.
它们既可以用肺呼吸，也可以通过皮肤呼吸。
Frogs have long legs that help them jump far.
青蛙有长长的后腿，帮助它们跳得很远。
They also have sticky tongues to catch insects.
它们还有黏性的舌头，可以捕捉昆虫。
Frogs like to live in wet places like ponds and swamps.
青蛙喜欢生活在池塘、沼泽等潮湿的地方。
They are important for nature because they eat mosquitoes and other bugs.
它们对生态环境很重要，因为它们会吃蚊子和其他昆虫。
Now you know that frogs are amphibians, and they start life as tadpoles before becoming adult frogs!
现在你知道青蛙是两栖动物，它们小时候是蝌蚪，长大后才能上岸生活了！
