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The front wheels began to slip.

前轮开始脱落了。

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In normal conditions, the torque is transmitted through the front wheels only.

在正常情况下，扭矩的传播途径是前轮只。

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The power from the engine pushes the car forward from the back wheels instead of pulling it forward with the front wheels.

VOA: special.2009.04.10

But Phnom Penh has its cyclo - a three-wheeled bicycle with the driver perched on high above the rear wheel, and the passengers in a bucket seat slung between the two front wheels.

VOA: standard.2010.06.14

The gasoline engine drives the front wheels, but it also sends some current to the batteries.

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Wheego has moved the battery pack forward, putting more weight on the front wheels.

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Then during acceleration, that energy moves to the front wheels, which support the combustion engine.

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