concepts
n. 概念,观念;思想(concept 复数形式)
例句
He can't grasp the basic concepts of mathematics.
他无法掌握数学的基本概念。
《牛津词典》
These old concepts are irreconcilable with modern life.
这些旧观念与现代生活是相互对立的。
《柯林斯英汉双解大词典》
Their cultural concepts are difficult to comprehend.
他们的文化观念很难理解。