抽象概念用英语怎么说？

抽象概念

例句

• The idea of redness is an abstraction. 红色概念是一种抽象概念。
• It's the abstract that is called system analysis. 这就是所谓系统分析这个抽象概念。
• The " Wandering Jew " acquires abstract terms with which to describe the various scenes which he visits. “ 游荡的犹太人 ” 获得了抽象概念,他们用这些抽象概念来表述他们见到的各种各样的景物.
• Whiteness, roundness, and bravery are abstractions. "白" 、 "圆"和"勇敢"都是抽象概念.
• He speaks in concepts rather than specifics. 他讲话时尽用抽象概念,而不谈具体.
• Mendelian gene is not a real physical entity but an abstraction or symbol. 孟德尔式的基因并不是真正的实体,而是抽象概念或者是说明性的符号.
• "Third World" is an abstraction, a form of shorthand. “第三世界”是个抽象概念，是一种简称。
• 'Third World' is an abstraction, a form of shorthand... “第三世界”是个抽象概念，是一种简称。
• Is it worth fighting a big war, in the name of an abstraction like sovereignty? 在主权之类抽象概念的名义下打一场大战是否值得呢？
• It's not a question of some abstract concept. 这不是某个抽象概念的问题。