the saguaros bloom at night to attract visitors. 弁庆柱在晚上开花 吸引了不少拜访者
At the same time wind blowing on to the shore sweeps the fog inland. 与此同时 吹向海岸的风将雾气带上陆地
They're very good at conserving moisture 它们非常善于保存水分
But moisture, lost even at night, has to be replaced sometime somehow 可是水分在晚上也会损耗 必须在什么时候想办法补充
to get at the cooler ground beneath. 贴近下面较冷的地面
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
no-one guessed at the sheer size of this cave. 没有一个人能预料到它竟然有这么大
It's astonishing that these extraordinary cave dwellers manage to survive at all. 这些奇异的洞栖生物能如此成功地生存 的确令人称奇
and this gives them something to aim at. 这也给了它们瞄准目标的机会