trailer bus

例句：

1. 1. The tour guide showed usaround the city on a trailer bus.
   导游用拖车式巴士带我们游览了城市。
2. 2. The family decided to take atrip in a trailer bus instead of flying.
   这个家庭决定乘坐拖车式巴士旅行，而不是乘飞机。
3. 3. Thedriver had to stop thetrailer bus because of an overturned car.
   因为一辆翻车的汽车，司机不得不停下拖车式巴士。