英语词汇backswimmers怎么读，是什么意思，单词翻译、读音、固定搭配用法和短语词组及例句-英汉双解词典

单词	backswimmers
释义	back swimmer, backswimmer['bæk,swimə] n.【昆虫】仰泳蝽,松藻虫[仰泳蝽科(Notonectidae)水虫][亦作 boat bug]
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