单词	cleaner fish
释义	cleaner fish noun : any of several small fish that clean larger fish of parasites and dead tissue especially : cleaner wrasse So-called cleaner fish are among the best-known examples of mutualism in nature. These small fish eat parasites off the skin of larger fish, and it's a win-win situation—the small fish gets food and protection from predators while the larger one stays clean and healthy. Henry Fountain, New York Times, 28 Apr. 2009 Word History First Known Use 1958, in the meaning defined above
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英语词典包含469781条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。