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  1. umbra

    • IPA[ˈəmbrə]

    美式

    • n.
      the fully shaded inner region of a shadow cast by an opaque object, especially the area on the earth or moon experiencing the total phase of an eclipse.;the dark central part of a sunspot.
    • noun: umbra, plural noun: umbrae

    • 釋義

    名詞

    • 1. the fully shaded inner region of a shadow cast by an opaque object, especially the area on the earth or moon experiencing the total phase of an eclipse.
    • the dark central part of a sunspot.
    • shadow or darkness.
    • 更多解釋
    • IPA[ˈʌmbrə]

    英式

    • n.
      the fully shaded inner region of a shadow cast by an opaque object, especially the area on the ...

    Oxford Dictionary