牛蛙是一种很大的青蛙，它的叫声很大，像牛一样。

The 牛蛙 is a very large frog, and its croak is loud, like a cow's.

有的地方的人会吃牛蛙，牛蛙肉很嫩。

In some places, people eat 牛蛙; its meat is very tender.