Definition: relating to ideas and not real things Level: B2
对于幼儿来说，像正义这样的抽象概念可能很难理解。
For young children, ___abstract ideas like justice can be hard to understand.
真理和美是抽象的概念。
Truth and beauty are ___abstract concepts.
阅读能提高你的抽象思维能力。
Reading improves your ___abstract thinking skills.
