When full, a saguaro stem can store up to five tonnes of water 吸饱水后 弁庆柱的茎干中 已储存了5吨左右的水
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
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
It's only now that they can leave shelter. 所以只有到了晚上它们才能离开庇护所
In the Sahara the temperature can drop as much as 30 degrees during the night, 在撒哈拉沙漠中 晚上的气温会下降整整30℃
but their body temperature can still rise. 但它们的体温仍在升高
Few rocks can resist the continuous blast of the sand carrying wind. 岩石很难抵挡风沙持续不断的摧残
Star dunes like these can be 300 metres high. 这些巨型沙丘高达300多米