Summary: 讲师：本-桑德斯 学校:TED In 2004, Ben Saunders became the youngest person ever to ski solo to the North Pole. In 2011, he’ll set out on another record-breaking expedition, this time to be the fastest person to walk solo to the North Pole. 课程介绍：北极探险者本-桑德斯回忆他独自利用雪橇横穿北极的艰难经历。
