太空地质学家猜测这些陡坡可能类似于葡萄干上的皱纹，是在几十亿年前当行星表面冷却收缩时开始形成的。

Astrogeologists suspect these scarps may be analogous to the wrinkles on a raisin, having formed billions of years ago as the planet's surface cooled and shrank.

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这样导致皮肤表面皱纹的形成。

This causes wrinkles to develop on the skin.

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穿越表面的一条线，如窄缝、裂缝或皱纹。

A line across a surface, as a crack, fissure, or wrinkle.

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