这条河在松软岩石中开辟出一条水道来。

The river had channelled its way through the soft rock.

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当地人还在这块松软的岩石上凿出了200多个洞穴。它们有着各种各样的用途，用作神圣的墓地也用作食物储藏室。

Local people have also carved out over two hundred caves in the soft rock, and use them for everything from sacred burial places to food storage.

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由于风将砂粒刮起来，碰撞大岩石，久而久之，较松软的岩石层就被慢慢地磨损。(只能译成“较”，不能译为“更”)。

When winds blow sand particles against a large rock for a long time, the softer layer of the rock are slowly worn away.

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