single-deck bus

例句：

1. 1.The single-deck bus is the fastest way to get to the airport.
   单层巴士是去机场最快的方式。
2. 2.The single-deck bus has become a popular mode of transportation in many cities.
   单层巴士已经成为许多城市流行的交通工具。
3. 3.The single-deck bus was designed for people who need to travel long distances but don't want to take a plane.
   单层巴士是为那些需要长途旅行但又不想坐飞机的人设计的。