roll-on roll off traffic roll-onroll-off traffic: 集裝箱roll on roll-off container: 滾裝集裝箱roll-on roll off: 滾上滾下roll-on roll-off: 滾裝船; 開上開下法roll-on roll-off berth: 開上開下泊位下載手機詞典可隨時隨地查詞查翻譯