Three things are certain about base jumping. You will break your bones. You wil全高清自动录播系统直播l watch your friends die. And – if you do it long enough – it will eventually kill you. In this heady, testosterone-packed environment, adrenaline junkie Karina Hollekim is regarded 刀剑神域21as one of the best of the best. We follow Karina for several years as she hurls herself off increasingly treacherous cl...