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  1. customs union

    • IPA[ˈkəstəmz ˈyo͞onyən]

    美式

    • n.
      a group of countries that have agreed to charge the same import duties as each other and usually to allow free trade between themselves.
    • noun: customs union, plural noun: customs unions

    • 更多解釋

    英式

    • n.
      a group of states that have agreed to charge the same import duties as each other and usually ...

    Oxford Dictionary

  2. 知識+