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. 功效[正式] Recent medical studies confirm the efficacy of a healthier lifestyle. 近來(lái)的醫(yī)學(xué)研究證實(shí)了更健康的生活方式的功效。 返回 efficacy劍橋詞典the ability , especially of a medicine or a method of achieving something, to produce the intended result 功效，效力，效驗(yàn) They recently ran a series of tests to measure the efficacy of the drug . 他們最近進(jìn)行了一系列的試驗(yàn)來(lái)檢測(cè)這種藥的功效。 同義詞effectiveness 返回 efficacy