弹性

The tyres provide luxurious resilience.

A rubber band has elasticity.

The rubber has lost its spring.

Now that he is old, there's not much spring in his muscles.

Stones have no spring/resilience/give.

The ball does not bounce well.

springy bed/wool

springboard with a lot of give

materials with elastic properties

elastic bandage

measure the elasticity (of sth)

These regulations/policies are flexible/elastic.

These criteria are too elastic to handle.

Your methods lacked elasticity as to their practical application.

elastic schedule/timetable

flexible pay