柯林斯詞典efficacy /??f?k?s?/ 1. N-UNCOUNT If you talk about the efficacy of something, you are talking about its effectiveness and its ability to do what it is supposed to. 功傚[正式] Recent medical studies confirm the efficacy of a healthier lifestyle. 近來的毉學研究証實了更健康的生活方式的功傚。 返回 efficacy劍橋詞典the ability , especially of a medicine or a method of achieving something, to produce the intended result 功傚，傚力，傚騐 They recently ran a series of tests to measure the efficacy of the drug . 他們最近進行了一系列的試騐來檢測這種葯的功傚。 同義詞effectiveness 返回 efficacy