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  1. subgroup

    • IPA[ˈsəbˌɡro͞op]

    美式

    • n.
      a subdivision of a group.;a group whose members are all members of another group, both being subject to the same operations.
    • noun: subgroup, plural noun: subgroups

    • 更多解釋
    • IPA[ˈsʌbɡruːp]

    英式

    • n.
      a subdivision of a group.

    Oxford Dictionary