看时间燃成灰烬。

See burning into ashes.

youdao

那无疑是一颗流星发出来的，守夜人可能经常看到这种流星在空旷的苍穹中燃成灰烬。

It was doubtless caused by one of those meteors, which the night-watcher may so often observe burning out to waste, in the vacant regions of the atmosphere.

youdao

You konw, the earth is gonna be burnt up by the sun one of these thousands of years.

在未来几千年中的某一年,地球会被太阳燃成灰烬。

麻省理工公开课 - 电影哲学课程节选