crumb rubber

例句：

1. 1.The car's engine is making a lot of noise, and the crumb rubber on the road is causing problems.
   汽车发动机发出很多噪音，路上的碎屑橡胶造成了问题。
2. 2. The construction workers used crumb rubber to seal the cracks in the concrete floor.
   建筑工人使用碎屑橡胶来密封混凝土地板上的裂缝。
3. 3. The crumb rubber was used as a temporary flooring material for the event.
   碎屑橡胶被用作临时的地板材料，用于该活动。