通过我们私人的友谊我获益非浅。

I am the gainer by our personal friendship.

youdao

我觉得总要她帮忙就是利用了我们的私人交情。

I felt it would be presuming on our personal relationship to keep asking her for help.

《牛津词典》

他是个非常好的、很宝贵的私人朋友，我们已相识多年。

He was a great and valued personal friend whom I've known for many years.

《柯林斯英汉双解大词典》

The entire domain of what we call private life separated from the state.

即整个我们称为私人生活的领域,都从国家区隔出来。

耶鲁公开课 - 政治哲学导论课程节选