摩擦发光

例句：

1. 1.The car's tires are worn from years of driving on the rough road.
   汽车的轮胎因为多年在崎岖的道路上行驶而磨损。
2. 2. The machine is designed to reduce friction between moving parts.
   这台机器被设计来减少移动部件之间的摩擦。
3. 3.Friction can cause heat and wear, which can lead to mechanical failure.
   摩擦会导致热量和磨损，可能导致机械故障。