You'd be better going by bus.
你坐公共汽车去会更好些。
He goes to work by bus.
他乘公共汽车去上班。
They had to travel everywhere by bus.
他们只得乘公共汽车出行。
They criss-crossed the country by bus
他们乘公共汽车游历这个国家。
It's cheaper by bus, but the train is a lot quicker, so it's as broad as it's long.
乘公共汽车便宜，但坐火车快得多，所以各有优点。