The theory seems to have no basis in fact.

这一理论似乎没有事实根据。

《牛津词典》

The fact of the matter is that demon theory doesn't do a very good job of explaining the disease, while germ theory does do a good job.

事实上，恶魔理论并不能很好地解释疾病的问题，而微生物理论却能将疾病问题分析得很透彻。

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We have what at first seems like a pretty attractive theory, but then, how do you explain the fact that this has happened before?

我们提出了一开始看起来很有吸引力的理论，但是接下来，你要如何解释以前也发生过这种情况呢？

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It's Huxley that said woe to the slaying of a beautiful theory by an ugly fact, nuclear collapse.

赫胥黎说过,一个美丽的理论,被丑陋的事实所抹杀，核坍塌，真是科学的悲剧。

麻省理工公开课 - 固态化学导论课程节选

Now,remember,according to the personality theory of personal identity, what makes it me is the fact that it's the same evolving personality.

请记住根据个人认同感的人格理论，定义我是我的是相同的进化中的人格。

耶鲁公开课 - 死亡课程节选

In fact,so what we see is,the body theory is in exactly the same problem, exactly the same situation,as the personality theory.

事实上，从我们所见能得出，肉体理论，和人格理论具有一样的问题和情况。

耶鲁公开课 - 死亡课程节选

The best evidence for the amyloid theory is the fact that rare early-onset cases are caused by mutations in certain genes involved in producing amyloid.

FORBES: Eli Lilly Alzheimer's Disease Failure Bolsters Amyloid Theory Skeptics

Just as interesting or scary, depending on what you consider entertainment is the fact that the technology and theory behind algorithmic trading is now entering all sorts of other fields, from advertising to heathcare to pop music creation.

FORBES: Knight Capital's Algorithmic Fiasco Won't Be The Last of its Kind

"In fact, the prevailing theory is that these servers in Irkutsk may be only a hopping point for an attack that could be coming from somewhere else, " McLaughlin said during the simulation.

NPR: Cyberattack: U.S. Unready For Future Face Of War