作业系统 Traditional 作業系統 zuò yè xì tǒng 🔊 operating system (Tw) + Review this word Meanings zuò yè xì tǒng 作業系統 operating system (Tw) Its characters 作zuòto do; to engage in业yèline of businessHSK 6系xìto connectHSK 5统tǒngto gather