滚装船滚上滚下roll: vt. 1.滚,转,推滚(桶、车轮等),使(烟、尘土)滚 ...off: adv. 1.〔运动〕向那边,隔开。 be off 走, ...roll onroll off facilities: 水平装卸设施roll onroll off ship: 滚装船roll onroll off system: 水平装卸法下载手机词典可随时随地查词查翻译