bumper

车辆一辆接一辆，紧挨着排成一列。

The cars were ___bumper to ___bumper.

汽车的前保险杠在事故中凹陷了。

The car's front ___bumper was dented in the accident.

一个坚固的保险杠可以防止车辆严重损坏。

A strong ___bumper can prevent serious damage to the vehicle.