elastic parts

例句：

1. 1.The material is elastic enough to stretch easily.
   这种材料足够有弹性，可以轻松拉伸。
2. 2.The rubber band is elastic, so it will return to its original shape.
   橡皮筋是弹性的，所以它会恢复到原来的形状。
3. 3.The car tires are elastic, which helps them grip the road better.
   汽车轮胎是弹性的，这有助于它们更好地抓地。