Heaven knows what they put in it.

天知道他们往里面放了些什么。

《柯林斯英汉双解大词典》

Heaven knows they have enough money.

确实他们有足够的钱。

《柯林斯英汉双解大词典》

What do you mean no one will know? Heaven knows, Earth knows, you know and I know.

没人会知道是什么意思？天知，地知，你知，我知。

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Because the earth is made of iron, heaven knows everything is made of the same stuff, all heavenly bodies.

因为地球是由铁构成的，上帝知道一切,世间万物是由同一东西组成的，即天体。

麻省理工公开课 - 固态化学导论课程节选

Heaven knows whether we have sowed the seeds of more bin Ladens through massive bombing.

FORBES: Man with a vision

This very disjointed and mostly soporific presentation had been postponed from earlier this year but heaven knows why.

FORBES: MY MY Talk About a Dysfunctional Family As Sprint Publicly Beats Its Subsidiary Clearwire

The Heaven Knows I'm Miserable Now singer was treated in a Michigan hospital in January for a bleeding ulcer.

BBC: Morrissey postpones show due to double pneumonia