单词	diving beetle
释义	diving beetle noun : any of various predatory aquatic beetles (family Dytiscidae) that breathe while submerged using air trapped under their elytra Example Sentences Recent Examples on the Web Various species of aquatic insects, such as the predaceous diving beetle, use bubbles for breathing underwater. Elizabeth Gamillo, Smithsonian Magazine, 27 May 2021 From horror to hope Scientists have known for a few decades that diving beetles share the waterlogged limestone cavern known as Devil’s Hole with the pupfish. Jason Bittel, National Geographic, 1 Mar. 2019 Word History First Known Use circa 1889, in the meaning defined above
随便看	Phascum phase phase advancer phase angle phase converter phase diagram phase distortion phase down phase in phase inverter phase line phase modulation phase out phase plate phase rule phase shift phase space phase splitter phase transformer phase velocity phase-contrast phase-contrast microscope phase-wound phased phased down

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