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  1. Oxford Dictionary

    litmus test

    英式

    • n.
      a test for acidity or alkalinity using litmus.；a decisively indicative test

    • noun: litmus test, plural noun: litmus tests

    • 釋義

    名詞

    • 1. a test for acidity or alkalinity using litmus.
    • 2. a decisively indicative test effectiveness in these areas is often a good litmus test of overall quality