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  1. protogalaxy

    • IPA[ˈprōdōˌɡaləksē]

    美式

    • n.
      a vast mass of gas from which a galaxy is thought to develop.
    • noun: protogalaxy, plural noun: protogalaxies

    • 更多解釋
    • IPA[ˈprəʊtə(ʊ)ɡaləksi]

    英式

    • n.
      a vast mass of gas from which a galaxy is thought to develop.

    Oxford Dictionary