- It evaporates.
它们升华了 - But it is the only source of water,
可是这是唯一的水源 - so Bactrian camels eat it.
所以双峰驼只能吃雪 - Elsewhere in the world
在世界上其它地方 - a camel at a waterhole can drink as much as 200 litres during a single visit.
一只骆驼找到水坑后 能一次喝下200升水 - Here the strategy is to take little and often.
但在这里的饮水策略却是少而频繁 - And with good reason,
这当然有充分的理由