坐火车

Going by train is more economical than going by plane.

坐火车比坐飞约。

I suggested that it would be quicker to travel by train.

我建议说坐火车旅行要快一些。

I made my way home to the dreary provinces by train.

我坐火车回到索然无味的外省老家。

Are you travelling by train?

准备坐火车旅行吗？