因此，只要关注分离所需的抽象存在，我认为可以不使用任何特定的图书馆。

Therefore, as long as the separation of concern and required abstraction is present, I think it would be OK not to use any specific library.

youdao

这真的没有什麽不一样的，唯一的不同只是，音乐是一个无形的抽象存在而非有形实体。

There's really no difference except for the fact that music is something intangible and abstract and not a physical entity.

youdao

直接知识的原则应该排斥无规定性的空洞直接性（抽象存在或纯粹的、自为的统一），而力持理念与存在的统一。

The maxim of immediate knowledge rejects an indefinite empty immediacy (and such is abstract being, or pure unity taken by itself), and affirms in its stead the unity of the Idea with being.

youdao

The state was an abstraction, but in the person of the czar it was a reality.

国家" 只是个抽象概念,但沙皇这个人是真实存在的

耶鲁公开课 - 欧洲文明课程节选

Or you could use the "is there" question to ask about the existence of something more abstract

另外，你也可以使用“Is there”问句来询问更为一些抽象的事情是否存在。

Is there 课堂 - SpeakingMax英语口语达人

So the number two, the numbers, three, whatever it is, whatever they are, are these Platonic abstract entities that don't exist in space and time.

因而,数字2,数字3,不管它们是什么,至少它们都是不存在于时空中的,柏拉图式的抽象实体

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