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》

The lack of understanding fosters feelings of hatred between the two nations.

缺乏了解助长两国之间的仇意。

《新英汉大辞典》

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