我们尽可谈论美的事物，但美本身却是抽象的。

We may talk of beautiful things but beauty itself is abstract.

《牛津词典》

不要用这样抽象的术语来说。

Don't speak in such abstract terms.

youdao

他们有一些抽象的金属雕塑，如果你有时间，很值得一看。

They have some abstract metal sculptures that are well worth seeing if you have time.

youdao

Like the moon, Satan may look beautiful, but upon a closer scrutiny that beauty begins to yield certain metaphysical flaws.

像月亮那样，撒旦看起来非常美好，但是近看,就会发现这份美丽开始显露出一些抽象的瑕疵。

耶鲁公开课 - 弥尔顿课程节选

Now these ideas of classes, object-oriented programming, data abstraction, are about 40 years old, they're not new ideas.

面向对象编程的概念，数据抽象的概念，都是40年前就有的老东西了。

麻省理工公开课 - 计算机科学及编程导论课程节选

Why this struggle, and why must Milton struggle with such awkward metaphysical categories in order simply to address properly the power of light?

为什么弥尔顿必须,与这样一个奇怪的抽象的东西斗争,仅仅是为了恰当的描述光明的力量？

耶鲁公开课 - 弥尔顿课程节选