Definition
To have no understanding or awareness of something.
不了解，沒有概念
I don't think you have any concept of the pain you've caused her.
我不認為你對你給她造成的痛苦有任何概念。
He seems to have no concept of the importance of time management.
他似乎對時間管理的重要性沒有任何概念。
These young people seem to have no concept of the struggles and sacrifices of the past.
這些年輕人似乎對過去的掙扎和犧牲沒有任何概念。