Never have those wildernesses been as fragile and as precious as they are today. 大自然从未像现在一样 脆弱而又珍贵
They're the largest and most demanding wildernesses of all. 是最大、最荒凉的无人区
This series will take to the last wildernesses 这部专题片将把你带到最后的蛮荒之地