Evidence of the Sahara's ancient seas and rivers, sandstone pinnacles were eroded by rainfall.

证据显示，撒哈拉的古代海洋和河流中，砂岩小尖塔被降雨侵蚀。

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Evidence of the Sahara's ancient seas and rivers, sandstone pinnacles were eroded by rainfall.

证据显示，撒哈拉的古代海洋和河流中，砂岩小尖塔被降雨侵蚀。

youdao