To crumble to dust; disintegrate.

弄碎分解成粉末；

youdao

Though empires crumble to dust, and centuries are lost in shadows, the white marble still sighs to the stars, "I remember."

尽管帝国皇权已经化为齑粉，历史已经湮没无闻，而那白色的大理石却依然向满天的繁星叹息说：“我记得！”

youdao

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。

youdao

Indeed, the possibility that they might crumble to dust seems to be less of a concern than how nations will cope with the rise of so-called "megacities, " cities with populations of more than 10 million.

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