Hard landing

That is the way of ups and downs.

For example, two people jumped from one plane to land.

The former, with a parachute behind, opens and slowly lands at the designated place. The latter can jump directly without anything and will land in an instant, of course, the ground must have corresponding protective equipment.

Then, the former's behavior is "soft landing", and the latter's behavior is "hard landing".

The "soft landing" is gradual and gentle. The hard landing is fast and fast, and the cost of the two is different.

The cost of "soft landing" is a parachute. The hard landing pays more. First, we need to build a cushion that is soft enough for hundreds of square meters in area and over ten meters in thickness. Secondly, people who want to jump down must be good enough to reach the level of "eating well and fragrant" even if the head falls down on the mat. Third, the time required to jump off is not allowed to have one second error, otherwise the consequences will be terrible.