The color of the fish

鬻色───The color of the fish

The Nile catfish swims upside down, and therefore has developed a light back and a dark belly, the reverse of the usual fish color scheme.───尼罗河的鲇鱼在水中是反着身子游的，是以它们的违部是浅色的，而腹部却是深色的，以及一般鱼的色彩结构相反。

contains carbon monoxide, which preserves the color of the fish and can make a fillet look fresher than it is.───含有一氧化碳，能让鱼保持本来的颜色，并比实际看起来更新鲜。

Manyyears ago, the most prominent problem of the polluted environment is that theriver and the water were changed their color, some fish even died for thepolluted river.───很多年前，环境污染所带来的最突出问题时河流和水的颜色被改变，一些鱼甚至死于被污染的河流。

It contains carbon monoxide, which preserves the color of the fish and can make a fillet look fresher than it is.───涂层里含有一氧化碳，能让鱼保持本来的颜色，并比实际看起来更新鲜。