elastic

这个时间表很有弹性，可以根据需要调整。

The schedule is ___elastic and can be adjusted as needed.

这种橡皮筋很有弹性，可以反复拉伸使用。

This rubber band is very ___elastic and can be stretched repeatedly.

这条运动裤的松紧带很舒适，不会在运动时滑动。

These workout pants have comfortable ___elastic that won't slide during exercise.