sweet fish

• 鲇鱼

sweet fish的用法和样例：

例句

1. Oriental sheatfish is one of economic fish for saline-alkali fishery wetlands in Songnen Plain.
   鲇鱼是松嫩平原盐碱湿地重要的高值食用鱼类之一。
2. 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，因此它们的背部是浅色的，而腹部却是深色的，和一般鱼的颜色布局相反。