I think what is urgent now is to solve the transportation problem.

我认为现在当务之急是解决交通问题。

youdao

Half track air cushion vehicle is a new kind of hybrid vehicle. It can solve the transportation problem on soft ground effectively.

半履带式气垫车辆是一种新型混合式车辆，它可以有效地解决松软路面的运输问题。

youdao

It was thought that a canal seemed the best solution to the transportation problem.

人们认为，运河似乎是解决运输问题的最佳办法。

youdao

Ray LaHood, Secretary of the U.S.Department of Transportation, says distracted driving is a critical problem.

VOA: standard.2010.06.24

The Reason Foundation for example, recently released a report saying that hydrogen cars are no panacea for the transportation problem.

CNN: All About: Greener driving

"I think that the answer to reducing our petroleum-import problem and reducing the carbon emissions from transportation is really threefold, " he said.

CNN: Lab makes renewable diesel fuel from E. coli poop

Mr. HINCHMAN: We've chosen the stricter California program because it's the only policy option available to us that we can use to reduce pollution emissions from the transportation sector, which is the most polluting and fastest-growing problem in terms of air quality in the Northeast.

NPR: States Push Automakers on Fuel Efficiency