他们不由自主地相拥，只要作品永存，他们就永不分离。

They spontaneously embrace and are linked forever if the book lasts forever.

youdao

他们发誓永不分离。

They swore never to be separated.

《新英汉大辞典》

他向她表白了他的痴情，说他们永不分离。

He told her he loved her, and they were inseparable.

youdao

If they're really, bottom line, metaphysically speaking, the same thing, then you couldn't have one without the other after all.

如果从形而上学的角度说,它们终归是一体的,那你根本不可能将两者分离开来

耶鲁公开课 - 死亡课程节选

So that separation entails separation from alien peoples and practices that are inconsistent with the worship of God.

这分离也意味着与异族分离,与不符合上帝崇拜的习俗的分离。

耶鲁公开课 - 旧约导论课程节选

So, for example, when people, and we'll talk about this next class, were looking at different characteristics spectra of different atoms, what they were seeing is that it appeared to be these very discreet lines that were allowed or not allowed for the different atoms to emit, but they had no way to explain this using classical physics.

举个例子，当大家看到,不同原子的特征光谱时,他们看到的是一些分离的线,那可以使不同的原子,发射或不发射出去，但是这些无法用经典物理来解释。

麻省理工公开课 - 化学原理课程节选