音标发音英式音标 [ˌrəʊlˌɒn ˌrəʊlˈɒf]美式音标 [ˌroʊlˌɑːn ˌroʊlˈɑːf]英式发音 美式发音 基本解释（船）滾裝滾卸的，汽車可直接上下的。同根派生 roll-on roll-off相关词英汉例句adjective [ before noun ]a roll-on roll-off ferry 汽車輪渡roll-on roll-off更多例句英英字典劍橋英英字典 A roll-on-roll-off ship is built so that vehicles can drive on at one end and off at the other.roll-on roll-off剑桥字典roll-on roll-off柯林斯字典