They are very distinctive bottom-living fish with large heads and eyes.

他们的独特之处是生活在海底附近，大脑袋、大眼睛。

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A very large flat sea fish with triangular fins, the largest type of ray.

蝠鲼一种巨大的扁平海鱼，鳍呈三角形，为鳐中最大的一种。

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Currently in China it is very difficult to eat wild river fish, most are farm-raised fish, this is the same even with those who live next to large rivers.

现在在中国已经很难吃到野生的河鱼了，绝大部分都是通过饲料喂养的鱼类，哪怕就是生活在大江大河旁边，也是这样。

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