1. Freshwater fish; freshwater lakes. 
   淡水鱼；淡水湖
2. European freshwater fish resembling the roach. 
   类似于斜齿鳊的欧洲淡水鱼。
3. any of various freshwater fish of the family_Cyprinidae. 
   多种小软鳍鱼科淡水鱼。
4. European freshwater food fish having a greenish back. 
   背部呈绿色的欧洲淡水食用鱼。
5. very small European freshwater fish common in gravelly streams. 
   常见于多碎石的溪流中非常小的欧洲淡水鱼。

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