英汉词典

theory 基本解释

• n. 理论；原理；学说；推测

theory 词态变化

theory 中文词源

来自希腊语 theoria,推理，假设，来自 theorein,看，观察，考虑，来自 thea,看，视野，词源 同 theater.引申词义理论，学说等。

theory 英文词源

theory

theory: [16] The etymological notion underlying theory is of ‘looking’; only secondarily did it develop via ‘contemplation’ to ‘mental conception’. It comes via late Latin theōria from Greek theōríā ‘contemplation, speculation, theory’. This was a derivative of theōrós ‘spectator’, which was formed from the base thea- (source also of theásthai ‘watch, look at’, from which English gets theatre).

Also derived from theōrós was theōreín ‘look at’, which formed the basis of theórēma ‘speculation, intuition, theory’, acquired by English via late Latin theōrēma as theorem [16]. From the same source comes theoretical [17].
=> theatre

theory (n.)

1590s, "conception, mental scheme," from Late Latin theoria (Jerome), from Greek theoria "contemplation, speculation; a looking at, viewing; a sight, show, spectacle, things looked at," from theorein "to consider, speculate, look at," from theoros "spectator," from thea "a view" (see theater) + horan "to see," possibly from PIE root *wer- (4) "to perceive" (see ward (n.)).

Earlier in this sense was theorical (n.), late 15c. Sense of "principles or methods of a science or art" (rather than its practice) is first recorded 1610s (as in music theory, which is the science of musical composition, apart from practice or performance). Sense of "an intelligible explanation based on observation and reasoning" is from 1630s.

theory 词组搭配

theory 英文释义

1. a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena;

"theories can incorporate facts and laws and tested hypotheses"

"true in fact and theory"

2. a tentative theory about the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena;

"a scientific hypothesis that survives experimental testing becomes a scientific theory"

"he proposed a fresh theory of alkalis that later was accepted in chemical practices"

3. a belief that can guide behavior;

"the architect has a theory that more is less"

"they killed him on the theory that dead men tell no tales"

theory 双语例句

1. Punishment cannot be discussed in isolation from social theory.

不能脱离社会理论孤立地讨论惩罚。

来自柯林斯例句

2. There were some holes in that theory, some unanswered questions.

那个理论中有一些漏洞，一些问题没有解答。

来自柯林斯例句

3. Did you ever swallow the conspiracy theory about Kennedy?

你有没有轻信过有关肯尼迪总统遇刺的阴谋论？

来自柯林斯例句

4. Einstein had the chutzpah to discard common sense and long-established theory.

爱因斯坦敢于抛弃常识和长期公认的理论。

来自柯林斯例句

5. The book's aim was to make economic theory more digestible.

该书的目的是要让经济学理论更加简单易懂。

来自柯林斯例句

theory 实用场景例句

According to the theory of relativity, nothing can travel faster than light.

根据相对论，任何东西都无法超越光速。

牛津词典

the theory and practice of language teaching

语言教学理论与实践

牛津词典

I have this theory that most people prefer being at work to being at home.

依我看，多数人喜欢工作而不愿待在家里。

牛津词典

In theory, these machines should last for ten years or more.

从理论上讲，这些机器应能用十年以上。

牛津词典

That sounds fine in theory, but have you really thought it through?

这话听起来很有道理，但是你真正全面考虑过没有？

牛津词典

Marx produced a new theory about historical change based upon conflict between competing groups...

马克思创立了一种新理论，认为历史的演变是基于对立集团之间的冲突之上的。

柯林斯高阶英语词典

Einstein formulated the Theory of Relativity in 1905.

爱因斯坦于 1905 年创立了相对论。

柯林斯高阶英语词典

There was a theory that he wanted to marry her...

有人认为他想娶她。

柯林斯高阶英语词典

My theory about divorce is that it's not the split-up that damages children, it's how it is handled.

我对离婚的看法是，伤害孩子的不是婚姻的破裂，而是处理离婚的方式。

柯林斯高阶英语词典

He taught us music theory.

他教我们乐理。

柯林斯高阶英语词典

...graduates who are well-trained in both the theory and practice of statistics.

在统计学理论和实践两方面都训练有素的毕业生

柯林斯高阶英语词典

A school dental service exists in theory, but in practice, there are few dentists to work in them.

照理说，学校也有牙医诊所，可实际上，里面的牙医寥寥无几。

柯林斯高阶英语词典

He is too old to go to school.

他太老了,不能去学校了.

期刊摘选

His experiment negatived the theory.

他的实验驳斥了这个理论.

《现代英汉综合大词典》

Einstein's theory of relativity won for him universal esteem.

爱因斯坦的相对论赢得了全世界对他的崇敬.

《现代汉英综合大词典》

Copernicus was terribly persecuted for his scientific theory.

哥白尼由于其科学理论而遭到严重的迫害.

《现代汉英综合大词典》

The theory is of limited usefulness.

这个理论用途有限.

《简明英汉词典》

This theory was initially received with great scepticism by her fellow scientists.

她的科学界同行最初对这一理论持有强烈的怀疑态度.

《简明英汉词典》

He hasn't a leg to stand for this theory of his.

他的这种理论是站不住脚的.

《现代汉英综合大词典》

The theory is not yet scientifically established.

这个理论尚未被科学地证实.

《简明英汉词典》

The scientist elucidated his theory by three simple demonstrations.

这位科学家以三个简单的实例来说明他的理论.

《简明英汉词典》

I find your theory is untenable and it must be rejected.

我觉得你的理论是站不住脚的,必须予以摒弃.

《简明英汉词典》

He cited Australia's sporting success as evidence for his theory.

他引用澳大利亚体育方面的成功来证明他的理论.

《简明英汉词典》

The doctrine of surplus value is the cornerstone of Marx's economic theory.

剩余价值学说是马克思经济理论的基石.

《现代汉英综合大词典》

Ade couldn't relate the phenomena with any theory he knew.

艾德无法用他所知道的任何理论来解释这种现象.

《简明英汉词典》

Einstein's theory of relativity is very abstruse.

爱因斯坦的相对论非常难懂.

《简明英汉词典》

Most of us don't hold with his theory.

我们大多数人不同意他的看法.

《简明英汉词典》

These new facts make the theory improbable.

这些新出现的事实使这一理论变得荒谬.

《简明英汉词典》