| 词汇 | roll-on roll-off | 
| 释义 | roll-on roll-off  adjective [ before noun ] UK uk/ˌrəʊlˌɒn ˌrəʊlˈɒf/ us/ˌroʊlˌɑːn ˌroʊlˈɑːf/ (informal ro-ro, uk/ˈrəʊ.rəʊ/ us/ˈroʊ.roʊ/)  (船)滚装滚卸的,汽车可直接上下的 A roll-on-roll-off ship is built so that vehicles can drive on at one end and off at the other.  a roll-on roll-off ferry 汽车轮渡  | 
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