相关单词同义词efficacy, 近义词 virtue 美德, utility 效用, efficiency 效率, efficacy 功效, success 成功, use 使用, usefulness 有用, helpfulness 有帮助, value 价值, effectualness 有效，有力，奏效，灵验..., effectivity 有效性, effectuality effectual的名词..., strength 力气, potency 效力反义词ineffectiveness, 低效率临近词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