the concept of social class
社会等级的概念
concepts such as ‘civilization’ and ‘government’
诸如“文明”和“政府”的概念
He can't grasp the basic concepts of mathematics.
他无法掌握数学的基本概念。
the concept that everyone should have equality of opportunity
人人应当机会均等的观念
1.概念; 观念; 观点; 设想; 想法
1.a broad abstract idea or a guiding general principle, e.g. one that determines how a person or culture behaves, or how nature, reality, or events are perceived