A third of the land on our planet is desert. 我们星球上1/3的陆地是沙漠
All life on land is ultimately dependent upon fresh water. 所有陆地生命归根结底都依赖于淡水
this land was just as flat and as deep as the Danakil Depression. 这片土地像达纳吉尔凹地一样平坦深陷
where giant land masses are pulling away from one another. 巨大的陆地板块在此互相分离
but its distribution over the land is far from even. 不过 水在陆地上的分配极不平均
The sun influences life in the oceans just as it does on land. 除了陆地之外 太阳也同样 影响着海洋中的生命
so the land becomes barren with little for animals to eat. 大地一片荒凉 动物们的食物日益稀少
snow forms a continuous blanket across the land. 雪便为这片土地盖上一层广袤无边的银毯