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  1. Oxford American Dictionary

    underpinning

    • IPA[ˈəndərˌpiniNG]

    美式

    • n.
      a solid foundation laid below ground level to support or strengthen a building.；a set of ideas, motives, or devices that justify or form the basis for something

    • noun: underpinning, plural noun: underpinnings

    • 釋義

    名詞

    • 1. a solid foundation laid below ground level to support or strengthen a building.
    • ▪ a set of ideas, motives, or devices that justify or form the basis for something the theoretical underpinning for free-market economics