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单词	stone fly
释义	stone fly noun : any of an order (Plecoptera) of insects with an aquatic carnivorous nymph having gills and an adult having long antennae, two pairs of membranous wings, and usually long cerci Example Sentences Recent Examples on the Web The brown stone fly nymph on the end of my line and the 9-foot-graphite stick in my hand would have to act as the steelhead divining rod. Paul A. Smith, Milwaukee Journal Sentinel, 18 Apr. 2020 Word History First Known Use 15th century, in the meaning defined above
随便看	ledger assets ledger bait ledger bark ledger blade ledger board ledger line mark of interrogation mark of reference mark of the beast mark off mark out mark sensing mark time mark tooth mark up mark you mark-on marka Markab markable Markan markan markas markdown markdowns

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。