平快车

例句：

1. 1. The train is the fastest way to travel from one city to another.
   火车是从一个城市到另一个城市的最快方式。
2. 2. She boarded the first-class compartment on the high-speed train.
   她登上了高速列车的一等舱。
3. 3. I prefer taking the high-speed train over driving my car.
   我更喜欢乘坐高速列车而不是开车。