But birds are not the only animals to benefit from the presence of the cacti. 不过鸟并非唯一从仙人掌那里 获得好处的动物
but that explanation raises another question. 但这里又牵扯出另一个问题
but they nonetheless need a regular supply of water. 但它们仍须定期补充水
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
but the animals have another way of keeping cool. 不过动物也有其它保持凉爽的方法
But for the majority of desert animals 但是对于大多数沙漠动物来说
but their body temperature can still rise. 但它们的体温仍在升高