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  1. Oxford Dictionary

    foundation stone

    英式

    • n.
      a stone laid at a ceremony to celebrate the beginning of construction of a building.；a basic or essential element of something

    • noun: foundation stone, plural noun: foundation stones

    • 釋義

    名詞

    • 1. a stone laid at a ceremony to celebrate the beginning of construction of a building.
    • ▪ a basic or essential element of something family life is one of the foundation stones of a good society