The expansion of desert-like conditions into areas where they did not previously exist is called desertification.

沙漠化是指类似沙漠的生态环境扩张到原本并没有沙漠的区域。

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The expansion of desert like conditions into areas where they did not previously exist is called desertification.

沙漠化是指沙漠式的环境扩张到先前没有该环境的地区。

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Besides the Argan tree's various human uses, UNESCO notes, it has had an historical role as a buffer against northern expansion of the Sahara desert.

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Among his architectural achievements were lavish desert palaces, fortresses and temples, as well as the expansion of the Second Temple in Jerusalem, his most famous project.

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The first expansion for Borderlands 2 is a fun, hilarious jaunt through pirate-infested desert.

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