The only solid piece of scientific truth about which I feel totally confident is that we are profoundly ignorant about nature.

我唯一深信的科学真理是，我们对自然界的深刻无知。

youdao

At that time I was ignorant of events going on elsewhere.

那时我并不了解其他地方发生的事情。

《牛津词典》

I met some ignorant people who called me all kinds of names.

我碰见了一些粗鲁人，他们用各种名称叫我。

《柯林斯英汉双解大词典》

And so, I have a film clip here of two very nice studies showing babies' ignorant--sorry, young children's ignorance of other people.

我给大家放两个优秀实验的电影片段,这个影片表明了幼儿对他人的无知

耶鲁公开课 - 心理学导论课程节选

Yet, like most Americans, I was ignorant of the Jamestown story, even though I'd spent much of my life in Virginia.

NPR: Unearthing History in 'A Voyage Long and Strange'

Whilst in particular the regime's treatment of women appears disgraceful, I also feel so ignorant that I am reluctant to moralise or interfere in a culture of which I and so many in the West are completely ignorant.

BBC: News | PANORAMA | Your earliest comments on Afghanistan - The Dark Ages

But it was giving me relief so I continued, ignorant of any future problems.

BBC: Coming Clean: An addict's diary