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  1. substorm

    • IPA[ˈsʌbstɔːm]

    英式

    • n.
      a localized disturbance of the earth's magnetic field in high latitudes, typically manifested as an aurora.
    • noun: substorm, plural noun: substorms

    • 更多解釋
    • IPA[ˈsəbˌstôrm]

    美式

    • n.
      a localized disturbance of the earth's magnetic field in high latitudes, typically ...

    Oxford American Dictionary