1、视频载入需要时间,请耐心等待几秒钟
2、若是播放失败请在播放列表更换其他片源重新播放即可
3、视频资源来源于网络,请勿轻信视频中广告!
At -100 degrees F, you can burn up to 5,000 calories a day, and with winter at less than 1% humidity, your body will lose water just breathing. This is Antarctica, where close-knit communities of scientists, engineers, and hardened field vets have forged an existence unlike anything on our planet, fighting brutal conditions to conduct crucial science.