making this one of the harshest deserts of all. 使得这里成为一片最荒凉的沙漠
one of the rarest mammals on the planet. 一种地球上最稀有的哺乳动物
bring snow to the Gobi Desert in Mongolia. 夹杂着风雪横扫蒙古戈壁沙漠
the temperature in midwinter can drop to minus 40, 但是到了冬至却能降至零下40℃
These great scars on the face of the Earth appear to be lifeless, 这些地球脸上的大伤疤看似毫无生机
A third of the land on our planet is desert. 我们星球上1/3的陆地是沙漠
shows us once again how complex and surprising the underground world can be. 再一次向我们展示了地底世界 是多么的复杂和惊人
But with half the world's limestone still to be explored, 但世界上仍有一半石灰岩洞尚未被开发
it's surely the most bizarre cave chamber in the world. 它可以说是世界上最奇异的厅洞
And the walls had one further surprise. 而石壁上还有更惊人的发现