Road crews near Denver are using artillery shells to blast piled up snow trying to make sure no more cars get trapped by avalanches.

• 为了设法保证不再有车辆被雪崩困住，丹佛市附近的道路工人正用炮轰来清除积雪.；昨天一场雪崩将2辆汽车撞出公路，并困住了8人。