efficacy

US [ˈefɪkəsi]

UK ['efɪkəsi]

n.效力
Web功效；效能；有效性

Synonym

n.

effectiveness,efficiency,usefulness,worth,value

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Web Definition

Efficacy

n.

1.	（尤指药物或治疗方法的）功效，效验，效力the ability of sth, especially a drug or a medical treatment, to produce the results that are wanted