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  1. Oxford Dictionary

    building block

    英式

    • n.
      a child's wooden or plastic toy brick.；a basic unit from which something is built up

    • noun: building block, plural noun: building blocks

    • 釋義

    名詞

    • 1. a child's wooden or plastic toy brick.
    • 2. a basic unit from which something is built up sounds are the building blocks of language