four-wheel drive
noun uk/?f??.wi?l ?dra?v/ us/?f??r.wi?l ?dra?v/
[ C or U ] (also 4x4); (written abbreviation 4WD)(车辆的)四轮驱动
If a vehicle has four-wheel drive, its engine supplies power to all four wheels instead of the usual two, so that the vehicle can travel easily over difficult ground.
Compare: all-wheel drive
[ C ]四轮驱动车
a vehicle that uses this system


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