原级：bumper car
1. 碰碰车：烟花汇演fireworks display | 碰碰车bumper cars | 经港往外地的旅客transit travellers
1. bumper cars
1. Paris Hilton played on bumper cars at the Coachella festival over the weekend.
2. But wouldn't you know it the road was jammed with cars, bumper to bumper.
3. Cars and trucks with " Yes " bumper stickers and flags jammed streets.
4. Upon taking a closer look at some of the cars currently parked around Shenzhen, one can notice a rather unusual bumper sticker - a green ribbon.
5. bumper cars
5. When visiting a theme park in China, listen for the shrieks as the roller coasters whiz past and the bumper cars collide.