全部

1·The theory remains untested.

该理论仍未经过验证。《柯林斯英汉双解大词典》

2·At the moment it is only a theory.

眼下，它还只是个理论而已。《柯林斯英汉双解大词典》

3·What are you basing this theory on?

你这种理论的根据是什么？《牛津词典》

4·In theory I'm on call day and night.

理论上，我不分昼夜随叫随到。《柯林斯英汉双解大词典》

5·The theory does not apply universally.

这个理论并非放之四海而皆准。《牛津词典》

6·And that's where the theory falls down.

这就是该理论的不足之处。《牛津词典》

7·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》

8·Tell me, what do you think of my theory?

告诉我，你认为我的理论怎么样？《柯林斯英汉双解大词典》

9·A theory should be internally consistent.

一套理论应当内在一致。《柯林斯英汉双解大词典》

10·A recent book has demolished this theory.

最近出版的一本书推翻了这种理论。《牛津词典》

理论

1·The theory remains untested.

该理论仍未经过验证。《柯林斯英汉双解大词典》

2·What are you basing this theory on?

你这种理论的根据是什么？《牛津词典》

3·The theory does not apply universally.

这个理论并非放之四海而皆准。《牛津词典》

4·And that's where the theory falls down.

这就是该理论的不足之处。《牛津词典》

5·Tell me, what do you think of my theory?

告诉我，你认为我的理论怎么样？《柯林斯英汉双解大词典》

原理

1·Though she tried her best to explain the theory of the machine, I still failed to understand.

尽管她努力向我解释那台机器的原理，我还是不明白。

2·Out with every theory of human behavior, from linguistics to sociology.

从语言学、社会学的人类行为原理里解脱吧。

3·His academic work has been on pensions and labor market theory.

他的学术方向是养老金问题和劳动力市场原理。

4·The theory is simply that more lines of code imply more complexity.

行数更多的代码意味着更复杂，这样的原理相对简单。

5·The theory here is that a story crossing many technologies will be more complex and thus have a larger estimate than stories only involving one or two types of technology.

这一方法的原理是，与那些只包含一或两种类型技术的故事相比，横跨多类技术的故事要更复杂也因此需要更多的估算。

论

1·Did you ever swallow the conspiracy theory about Kennedy?

你曾相信有关肯尼迪的阴谋论吗？《柯林斯英汉双解大词典》

2·Abbas Salimi has been giving speeches about Jewish conspiracy theory.

阿巴斯·萨利米一直在做关于犹太人的阴谋论的演讲。

3·The concept of square-free coloring was introduced in graph theory by Alon in 2002.

无正方形着色的概念由阿龙在2002年引入图论。

4·Some scholars think of freedom is one kind of axiology, or ableism, or state theory.

某些学者认为自由是一种价值论、或能力论、或状态论。

5·That's why string theory also is sometimes called a theory of everything, because it could serve someday as a foundation for all future scientific discovery and innovation.

这就是为什么有时候弦论被称为一切的理论，因为有一天它会成为所有未来科学发现和革新的基础。

学说

1·The oxygen radicals theory should be the etiology of presbyacusis.

氧自由基学说应该是老年性聋的发病病因。

2·Now without doubt this is a dubious theory of classical anthropology.

现在毫无疑问这是一个关于古典人类学的可疑学说。

3·An early visitor was Charles Darwin nearly 175 years ago, on a trip that inspired his theory of evolution by natural selection.

大约在175年前，一位早期的访客在旅途中得到灵感-自然选择学说产生了，他就是查尔斯·达尔文。

4·Darwin's theory explained why species were so well adapted to their environment and how new species would form.

达尔文的学说解释了物种为什么对他们的环境适应得如此之好，也分析了新物种是如何形成的。

5·This new theory about germs invading from outside the body empowered the medical and pharmaceutical industry as guardians of human and animal health.

因为这个信奉“细菌从体外侵入人体”的新学说使得医学和药物制造工业理所当然地成为人类和动物健康的守护者。

(1)in theory理论上

(1)basic theory基本理论

(1)control theory控制理论，控制论

(1)game theory博弈论，对策论

(1)system theory系统论

(1)management theory管理理论