[清空]播放記錄
[清空]播放記錄
導演：邁克爾·拉赫曼
In March 2018 an international team of scientists gathered in a remote valley in the Canadian Rockies to conduct a unique experiment - to attempt to see into the heart of a massive avalanche to see if we can find ways to save lives in the future. Avalanches kill hundreds of people every year. Even i詳情
