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  1. Oxford Dictionary

    efficacy

    • IPA[ˈɛfɪkəsi]

    英式

    • n.
      the ability to produce a desired or intended result

    • noun: efficacy

    • 釋義

    名詞

    • 1. formal the ability to produce a desired or intended result there is little information on the efficacy of this treatment
    • 更多解釋

    efficacy

    • IPA[ˈefəkəsē]

    美式

    • n.
      the ability to produce a desired or intended result: there is little information on the efficacy of this treatment

    Oxford American Dictionary