Vehicles and street vendors' barrows were used to keep them away, and speeding military four-wheel drives with horns blaring arrived at the bomb sites.

车辆和街道商户的手推车被用来隔开人群，四轮驱动的军车呼啸着赶到爆炸发生地点。

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The military kick-started auto innovations like four-wheel drive and global positioning systems.

FORBES: Don't put one of these in your garage just yet.