Nowadays, there is often a lack of understanding between parents and children, which might result from lacking communication.

如今，父母和孩子之间往往缺乏相互理解，这可能是由于缺乏沟通所致。

youdao

She shows a lamentable lack of understanding.

她显得缺乏理解能力，实在令人遗憾。

《牛津词典》

I believe they come from a lack of understanding.

我相信成见来自于缺乏理解。

youdao

The other is lack of understanding of the services that exist.

VOA: special.2010.04.13

In many countries, the green roof industry is vulnerable to non-acceptance and a lack of understanding.

CNN: Green roofs cool cities, combat climate change, say Germans

The Alzheimer's Society said the incident showed "a lack of understanding in society" of dementia.

BBC: Dementia patient tasered by police alarming says charity

And there were also complaints and, you know, lack of understanding of how somebody...

NPR: Child Hunger: Nutritious Food Tough To Afford