基本解释n.沙发土豆；指什么事都不做；终日躺在沙发上看电视的人同根派生 英汉例句用作名词 (n.)Couch potatoes enjoy watching television just as mouse potatoes enjoy working on computers.沙发土豆爱看电视像鼠标土豆爱用电脑工作。