弹性蛋白

例句：

1. 1. The rubber band has a lot of elasticity.
   这条橡皮筋很有弹性。
2. 2.The material is very elastic, which makes it easy to stretch.
   这种材料非常弹性，很容易拉伸。
3. 3. The skin of the human body is elastic, allowing for quick movement.
   人体的皮肤是弹性的，可以快速移动。