elastic air chamber

例句：

1. 1.The material is elastic enough to stretch without breaking.
   这种材料足够有弹性，可以拉伸而不断裂。
2. 2.The rubber band is elastic, so it can be stretched and then released.
   橡皮筋是弹性的，所以可以被拉伸然后释放。
3. 3. The fabric is elastic, which makes it comfortable to wear.
   这种布料是弹性的，穿着很舒服。