Remote gravel desert, boundless sands, long camel team and the sounds of bells. camel team, where are you going ? camel bell, whom you are singing for.

悠悠戈壁，漫漫黄沙， 驼队长长， 驼铃声声。 驼队啊驼队，你到哪里去？ 驼铃啊驼铃，你为谁在鸣？

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The salt and gypsum, the faunal changes, and the unusual gravel provided abundant evidence that the Mediterranean was once a desert.

盐和石膏、动物群落的变化和不寻常的沙砾充分证明地中海曾经是一片沙漠。

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Above 4,000 meters is the highland desert: gravel, stones, and rocks.

海拔4000米以上是高山寒漠：砾石、石头和岩石。

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South from Swakopmund across the gravel plains of the Namib Desert lies the dramatic Namib Naukluft Park.

BBC: A do-it-yourself Namibian safari

In this desert region of flat-topped mountains, russet hills, gravel plains and swathes of scrubland, the black rhino are not tagged or tracked by satellite, nor are their movements restricted by the boundaries of a huge game reserve.

BBC: Saving rhinos in Namibia

Lawson is now fighting off a budgetary collapse of this high desert town of 2, 100, where the paved and gravel roads have no traffic signals, only stop signs -- and even those are so faded from the sun that the village would like to replace them if it had the money.

CNN: On the border: Guns, drugs -- and a betrayal of trust