But the two-wheeled way of transport's popularity began to fade because of fuel-powered competitors.

但由于出现了燃料驱动的竞争对手，这种两轮交通方式不再那么受欢迎了。

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Here is our guide to a two-wheeled adventure in the Mekong region.

我们在这里介绍一些湄公河地区的摩托车探险路线。

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Bicyclists often ride as though two-wheeled vehicles are exempt from all traffic laws.

骑自行车者无拘无束，仿佛两轮车就可以不遵守交通规则似的。

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Still,it is a welcomed vehicle in a country where many families of three or four people ride two-wheeled vehicles.

VOA: special.2009.03.28

Picture a bicycle with a two-wheeled carriage in place of a back tire.

VOA: special.2009.05.11

It was the pupils, aged between four and nine, who prompted the idea of two-wheeled transport.

BBC: Bromham Lower School head teacher gets on her scooter

The two-wheeled, gyroscopically balanced concept vehicle's spare chrome and white body seems to float through the air.

FORBES: Magazine Article

The Segway, that marvel of two-wheeled balance and electric mobility, may someday solve America's dependence on gas-powered engines.

FORBES: Magazine Article