When war devastated the land, buildings crumbled to dust.

当战争蹂躏大地时，建筑物化为灰烬。

We keep it in a climate-controlled case and we hardly ever move it, because with any sudden shock it could just crumble to dust.

我们一直把它保存在严格控制气候变化的展示台里，几乎不曾移动过；因为任何突然震动都可能使它瞬间崩溃，化为一地尘埃。

And  it was partly because of the pitfalls of Martian geology, as the first core it tried to collect  had crumbled to dust before it could be captured.

部分原因是火星地质学的陷阱，它试图收集的第一个核心在被捕获之前就已经化为尘埃。