Traffic jams are a common transportation problem.

交通阻塞是一种常见的城市病。

youdao

20 years ago, bicycles were the most common transportation tool for people.

20年前，自行车是人们最常见的的代步工具。

youdao

Donkeys, which were imported to the district, have become more common and contribute, in particular, to the transportation of crops and goods to market.

引进到该地区的驴已变得越来越常见，而且它们特别有助于将作物和货物运输到市场。

youdao

She hoped women would have jobs at every level of the industry when flying became a common form of transportation.

VOA: special.2010.05.26

The momentum is gaining for autonomous vehicles to become a common form of transportation, even as the debate about their safety and utility continues on.

FORBES: Self-Driving Cars From Google On The Road Toward Approval In California

Like many visitors today, they arrived by boat, though flights are the most common mode of transportation, and vital for supplying the few businesses and 3, 000 or so residents of the islands.

WSJ: Brazil Three Ways: Art, Eco-Escape, Surf City

Other common reasons included public transportation, wardrobe issues or dealing with pets.

CNN: Twelve amusing excuses for being late to work