Instead of normal planets whose composition could be predicted by theory, the planets populating our solar system are unique individuals whose chemical and tectonic identities were create.

我们的太阳系中的行星不是那些可以通过理论预测其组成的普通行星，而是独特的个体，它们的化学和构造特征都是由它们创造的。

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His interest in science and technology was leavened by a genuine passion for architectural history and theory.

对建筑历史学和其理论的热爱使他对科学和技术的兴趣更加浓厚了。

《柯林斯英汉双解大词典》

It was a theory unsupported by evidence.

这是一条没有证据支持的理论。

《柯林斯英汉双解大词典》

Another theory is that Kim Jong Un might try to build power by dismissing opponents and inciting South Korea.

VOA: special.2010.10.02

So hermeneutics will be our first topic, and it attempts to answer the last question that I've mentioned which is raised by theory of literature.

所以诠释学，是我们的第一个话题,它试图回答的是我在探讨文学理论时提出的最后一个问题。

耶鲁公开课 - 文学理论导论课程节选

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

Indeed, the kind of behaviour predicted by theory is already visible.

ECONOMIST: Banning hosepipe use is a poor solution to a water shortage

Potential answers are provided by a theory developed in the early 1980s known as "inflation".

BBC: The observable Universe and beyond

But they can be accounted for by chaos theory, which is another matter altogether.

ECONOMIST: Ren�� Thom