Freeflyers:ModemSkydiversImaginefallingtowardstheplanet...
问题详情：Freeflyers:ModemSkydiversImaginefallingtowardstheplanetEarthat 61 awesomespeedof300kilometersperhour.YoustartyourfallfromoverfourkilometersabovetheEarth.Andyouhavelessthanoneminutebe...