此外，这些设计还覆盖有“沙漠清漆”，一种在岩石表面经过数千年在这些元素暴露下而形成的釉料。
Furthermore, the designs were covered with "desert varnish", a glaze that develops on rock surfaces over thousands of years of exposure to the elements.
在冰岛以西500英里的地方，他和他的同伴到达了一片冰雪覆盖、遍布岩石的广阔土地。
Five hundred miles west of Iceland, he and his men reached an icy rocky mass of land.
努纳武特地区包括190万平方公里被岩石和冰雪覆盖的陆地，以及北极附近的几个岛屿。
Nunavut is 1.9 million square kilometres of rock and ice, and a handful of islands around the North Pole.
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