One building, twenty floors.

Starting from the roof, according to the wind and air resistance at that time, then calculate the acceleration of gravity and the weight of human body, then the time from the roof to the ground should be -

special, who has the fantasy to calculate such a boring thing.

Everyone's going to fall dead, okay?

When the elder rescued Yang Xiao, he was already at a height of more than a dozen stories.

When the elder and the white-haired man started, they had reached the ninth floor.

Four adults and a baby are falling again.

In minutes and seconds, it's going to crash into a bunch...