这辆卡车有18轮，还有一个白色牵引车头。
无论什么路况，四轮驱动都能让你摆脱僵尸，还给你更大的牵引力碾过挡路的僵尸。
Four-wheel drive lets you outrun zombies in any road conditions, plus gives you better traction for running over any zombies who get in your way.
料斗升降机是起重机械中的一种单斗提升的升降机，一般由带走轮的料斗、轨道及其支架、牵引绞车和滑轮组成。
The hopper elevator is a kind of single bucket elevator, which is composed of a hopper, a rail and a bracket, a traction winch and a pulley.
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