机会成本 Traditional 機會成本 jī huì chéng běn 🔊 opportunity cost + Keep this word Meanings jī huì chéng běn 機會成本 opportunity cost Its characters 机jīmachine; mechanism会huìcan; to know how toHSK 1成chéngto succeedHSK 6本běn(measure word for books)HSK 1