Traveling by bus is not so comfortable as by train.

坐公共汽车旅行不如坐火车舒服。

youdao

We traveled by train, not by bus.

我们是坐火车旅行的，不是坐公共汽车。

youdao

The towns are connected by train and bus services.

这些城镇由火车和公共汽车连接起来。

《牛津词典》

Others tried to make their way by train,bus,boat or car.

VOA: special.2010.04.23

The traveler stumbles bleary-eyed into the crowded arrival hall, only to face another two- to four-hour journey either by bus or train (a taxi ride would bankrupt an Arab prince) into the city.

CNN: HARD LANDING

Six kilometres east of Ventimiglia, the seaside resort town of Bordighera, also easily reachable by bus or train, has a smattering of trendy cafes and organic produce markets, a long ocean promenade lined with beach bars and glass-walled restaurants, plus a wide shoreline for sunbathing and swimming.

BBC: Have the Italian Riviera all to yourself

Five days a week he commutes to Riverwoods from his home in Chicago by train and bus for 70 to 90 minutes each way.

FORBES: The Cities With The Most Extreme Commutes