conceptual
adj. 概念的,观念的
例句
The two systems are, at bottom, conceptual models.
这两个系统实际上是概念模型。
《柯林斯英汉双解大词典》
There is a deeper conceptual problem, too.
还有一个更深层次的概念问题。
But there is a deeper conceptual problem, too.
但还有一个更深层次的概念问题。