ADJ [ADJ n]无顶的；敞篷的 An open-top bus has no roof, so that the people sitting on the top level can see or be seen more easily. An open-top car has no roof or has a roof that can be removed. 无顶的；敞篷的
He took me and my friend Cynthia to the movies in an open-topped car.
他开了辆敞篷车，载我和我的朋友辛西娅去看电影。
The team drove through the streets of Leeds city centre in an open-top bus.