相關單詞近義詞 competence 能力, efficacy 功效, effectiveness 有效性, productivity 生產率, proficiency 熟練, facility 設備, technique 技術, ability 能力, understanding 理解反義詞inefficiency, 無效率臨近詞efficient, efficacy, efficiency in, efficiency dip, efficiency gap, efficiency bar, efficiency rate, efficiency rank, efficiency less, efficiency rule, efficiency unit, efficiency test 返回 efficiencies