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  1. Oxford American Dictionary

    ball lightning

    • IPA[bôl ˈlītniNG]
    • n.
      a rare and little known kind of lightning having the form of a moving globe of light several centimeters across which persists for periods of up to a minute.

    • noun: ball lightning

    • 更多解釋

    ball lightning

    • n.
      a rare and little known kind of lightning having the form of a moving globe of light several ...

    Oxford Dictionary