相關單詞同義詞efficacy, 近義詞 virtue 美德, utility 效用, efficiency 效率, efficacy 功效, success 成功, use 使用, usefulness 有用, helpfulness 有幫助, value 價值, effectualness 有效，有力，奏效，靈驗..., effectivity 有效性, effectuality effectual的名詞..., strength 力氣, potency 效力反義詞ineffectiveness, 低效率臨近詞effectives, effective, effective needs, effective media, effective reach, effective labor, effective stock, effective organ, effective draft, effective power, effective point, effective cycle 返回 effectiveness