1. marine or freshwater animals that form colonies of zooids. 
   形成游动孢子群的海洋或淡水动物。
2. small voraciously carnivorous freshwater fishes of South America that attack and destroy living animals. 
   南美洲淡水鱼，是贪婪地肉食的且攻击并毁灭活着的动物。
3. an order of animals including almost entirely freshwater fishes: characins; loaches; carp; suckers; sometimes classified as a suborder of Ostariophysi. 
   包含几乎所有淡水鱼的一个目；热带淡水鱼；泥鳅；鲤鱼；鲤属鱼；有时被归为骨鳔目的一个亚目。
4. Any of several tropical American freshwater fishes of the genus Serrasalmus that are voraciously carnivorous and often attack and destroy living animals. 
   锯脂鲤一种锯脂鲤属美洲热带淡水鱼，它是贪婪地肉食的且常攻击并毁灭活着的动物
5. Freshwater fish; freshwater lakes. 
   淡水鱼；淡水湖

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• 1. 淡水动物
  fresh weight 鲜重...freshwater animals 淡水动物...freshwater fishes 淡水鱼
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