| 例句 |
efficacynoun the power to produce a desired resultquestioned the efficacy of the alarms in actually preventing auto theft edge, effectiveness, effectualness, efficaciousness, efficacity, efficiency, productiveness ability, capability, capacitypotency, puissance, strength ineffectiveness, ineffectuality, ineffectualness, inefficiency inability, inadequacy, inadequateness, incompetence, incompetency in the 13th century |