and they follow him closely as he travels across this desert 它们一起紧跟着它穿越沙漠
The scarcity of rain determined the shape of this icon of the desert 缺少雨水的环境塑造了这些沙漠中的图标
To get there, they have to cross the Sonoran desert. 要想到达那里 它们必须穿越索诺兰沙漠
The Sonoran desert in Arizona is not quite so dry as the Atacama - 亚利桑那州的索诺兰沙漠 并不像阿塔卡马沙漠那样干旱
so this slender strip of desert is virtually the only part of the Atacama where life can exist. 因此这个狭长地带实际上是 阿塔卡马沙漠中唯一的生命绿洲
This is the driest desert in the world. 这里是世界上最干旱的沙漠
and that problem dominates the lives of all desert dwellers. 这一问题支配着所有沙漠动物的生活
so it's only now that you can judge just how much life there can be in the desert. 所以只有此时你才能判断 沙漠中究竟有多少生物
In fact, most small desert creatures are nocturnal. 事实上 大多数小型沙漠动物 都是夜行动物