文化（知识等）沙漠
a place that is considered to have no cultural, intellectual, etc. quality or interest
This town is a cultural desert. 这个城镇是一片文化沙漠。
It seems strange to think that this bustling, thriving city was once derided as a cultural desert.
Those who didn't know better might be tempted to dismiss the news industry as an intellectual desert.
The priest claimed that the city was a spiritual desert.
We live in a moral desert, where people do whatever they want without regard for whether it hurts others.
See also: desert noun