It was pure guesswork on our part.

这纯属我们的猜测。

《牛津词典》

This was a conscious decision on our part.

我们作此决定是清醒的。

youdao

This is an unfortu- nate oversight on our part and a lesson to us.

不幸这是我方的疏忽，也是 一个教训。

youdao

"I think that there is a realism on our part that it will be some time before Afghanistan is able to sustain its security forces entirely on its own,".

VOA: standard.2009.12.09

What we'd be looking for,I take it, would be some kind of behavior on our part that calls out for explanation.

我认为，我们在寻找的东西，应该是某种我们需要解释的行为。

耶鲁公开课 - 死亡课程节选

And this is very much deliberate on our part so you just don't feel that inevitable angst when it comes to asking what you think is a dumb question and probably isn't, but you don't need to disclose your name.

这在我们的角度上来说是非常深思熟虑的,所以你们不要认为那是必然的麻烦,当问了一个你认为是愚蠢的问题,或者可能不是，但是你不必要,公开你的名字。

哈佛公开课 - 计算机科学课程节选

"There was a belief on our part that his arm was fine, " Alderson said.

WSJ: Mets Ace Santana Likely Out For Season

There was a lot of learning on our part in reaction to the marketplace.

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Carelessness on our part helps adversaries to better understand our capabilities and exploit this insight to their advantage.

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