英语词汇“backswimmer”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典

单词	backswimmer
释义	backswimmer (ˈbækˌswɪmə) noun an aquatic bug belonging to the family Notonectidae that swims on its back using its back legs as oars
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