掼炮一种由草纸包住一些砾石制成的小型鞭炮，其打火帽在与坚硬表面撞击时发生爆炸 A small firework consisting of some gravel wrapped in tissue paper with a percussion cap that explodes when thrown against a hard surface.
冰川前砂砾层冰河冰渍前沉积的沙及砾石覆盖的区域 An area covered by sand and gravel deposited at the front of a glacial moraine.
我们沿砾石小路颠簸而行。 We bumped up and down along the gravel path.
汽车在高低不平的砾石路面上颠簸着。 The car bumped on the uneven surface of the gravel road.