ef·fi·ca·cy
nounOPAL W
/ˈefɪkəsi/
/ˈefɪkəsi/
[uncountable] (formal)- the ability of something to produce the results that are wanted
功效；效验；效力 - to evaluate the efficacy and safety of the treatment
评估治疗的有效性和安全性
Word Originearly 16th cent.: from Latin efficacia, from efficax, efficac-, from efficere ‘accomplish’, from ex- ‘out, thoroughly’ + facere ‘do, make’. - to evaluate the efficacy and safety of the treatment