This will still be the case long after our generation has turned to dust.等我们这一代人早已故去后, 情况依然还会如此。

The country has all but turned to dust under the steady pressure of famine, drought, and civil war.在饥馑、干旱和内战的持续重压下, 这个国家几乎已经化作一片废墟。

when the relationship has turned to dust当这段感情化为虚无

But her success story has turned to dust.可是她的成功故事已烟消云散。