That was a conjecture, not a fact.

那是个推测，不是事实。

《柯林斯英汉双解大词典》

this, however, is a supposition, not a fact.

然而，这是一个假设，而不是事实。

youdao

Evolution is only a theory. It is not a fact or a scientific law.

进化论只是一种理论，既不是事实，也不是科学规律。

youdao

In fact,he did not express support for the Democratic candidate until a few days before the election.

VOA: special.2009.08.30

In other words, you are an end and not a means to me unless in fact I'm exploiting you and instrumentalizing you. Right?

换言之，对我来说，你不是手段，而是目的,除非我在剥削你，或把你工具化，是吧？

耶鲁公开课 - 文学理论导论课程节选

Yes. In fact, there is not enough energy in a single photon to go ahead and eject an electron from this zinc surface.

是的，事实上，这里的光子没有足够的能量,去从锌表面逐出一个电子。

麻省理工公开课 - 化学原理课程节选

For the moment, in any case, a sustained contraction of bank lending is still a threat, not a fact.

ECONOMIST: A new approach to financial risk

Your pursuit for the promotion or job of your dreams is not a fact and figures game -- it is a human game.

CNN: To get the job, find the hidden agenda

The fact that Americans do not like to see dysfunction in Washington is not a new fact and it certainly is not surprising.

WHITEHOUSE: Press Briefing by Press Secretary Jay Carney,