(每日一词)efficacy

efficacy

noun [ U ] 

UK   /ˈef.ɪ.kə.si/ 

US   /ˈef.ə.kə.si/ formal


meaning: 

the ability, especially of a medicine or a method of achieving something, toproduce the intended result

功效,效力,效验



例句:They recently ran a series of tests to measure the efficacy of the drug.

他们最近进行了一系列的试验来检测这种药的功效。


词汇助记:

前缀:ef- 向外

词根:fic-表示做;(beneficial /ˌben.əˈfɪʃ.əl/ adj. 有益的)

后缀:-acy 名词词后缀(delicacy 美味佳肴) 



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