他们在坚硬的岩石中凿隧道.

They tunnelled into <em>solid</em> <em>rock</em>.

为了达到铁矿矿床，他们只好钻透坚硬的岩石。

To reach iron-ore deposit, they had to bore through <em>solid</em> <em>rock</em>.

为了达到铁矿矿床, 他们只好钻透坚硬的岩石.

To reach iron - ore deposit, they had to bore through <em>solid</em> <em>rock</em>.

为了修建这条隧道，我们必须凿开坚硬的岩石。岩块，石块；礁；暗礁

Build this tunnel we had to cut through the <em>solid</em> <em>rock</em>.

这些微小的个体在坚硬的岩石层中生存了几百万年，居住得比任何已知的生命都要更深入地壳2千米。

These tiny entities survived for millions of years in <em>solid</em> <em>rock</em>, two kilometers deeper into the Earths crust than any recorded life.

她在坚硬的岩石上尽可能坐得舒服些.

She made herself as comfortable as the hard rock permitted.

如果他们知道了钻透那坚硬的岩石有多么困难.

If they knew how difficult it was to drill through the ard rock.

但是灵神星的表面并不是坚硬的岩石，而是重金属。

But Psyche's surface isn't just hard rock -- it's heavy metal.

骨化石基本上都是坚硬的岩石块，这意味着把它们组装成一具完整的骨架是巨大的挑战。

Fossilized bones are essentially solid lumps of rock, which means that mounting them into a skeleton is an enormous challenge.

坚硬的岩石给这些绚丽的共生种群提供了很好的停靠地点。

The hard rock provides excellent anchorage for communities of great variety and stunning color.