theory是什么意思

theory

英[?θ??ri] 美[?θi??ri]

n. 学说，理论，观点，猜想；

复数：theories;

同义词

n.
theory的同义词之：原理;推测
hypothesis impression idea judgment explanation conception attitude view speculation opinion inference supposition thought
theory的同义词之：其他释义
thought thesis explanation attitude sentiment view idea abstraction judgment supposition impression hypothesis feeling inference conception proposition opinion speculation

反义词

n.
theory的反义词之：学说;理论
practice
theory的反义词之：其他释义
practice

词组

in theory
used in describing what is supposed to happen or be possible, usually with the implication that it does not in fact happen 理论上（应该）；照道理

柯林斯高阶英汉双解学习词典释义

N-VAR

理论;学说

A theory is a formal idea or set of ideas that is intended to explain something.
例句
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。 Einstein formulated the Theory of Relativity in 1905. 爱因斯坦于 1905 年创立了相对论。
N-COUNT

观点;见解

If you have a theory about something, you have your own opinion about it which you cannot prove but which you think is true.
例句
There was a theory that he wanted to marry her... 有人认为他想娶她。 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。
N-UNCOUNT

(实践科目、技能的)理论基础

The theory of a practical subject or skill is the set of rules and principles that form the basis of it.
例句
He taught us music theory. 他教我们乐理。 ...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
PHRASE

从理论上说;照理说

You use in theory to say that although something is supposed to be true or to happen in the way stated, it may not in fact be true or happen in that way.
例句
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。

英汉词典释义

n.
学说
There are many theories about the origin of life. 关于生命起源的学说有很多。
理论, 原理
Your plan sounds fine in theory. 你的计划在理论上听起来不错。
意见, 看法
She has a theory that drinking milk prevents colds. 她有一种说法, 认为喝牛奶能防止感冒。

英英词典释义

Noun
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"

行业词典

医学：理论：立足于某一技艺的学说或原则，以别于对该技艺的实践；学说，臆想：系统阐明的假说，泛言之，即指一切不是以确切认识为基础的设想或观点；
哲学：理论相依性；theory-dependence；意义的理论负载性；theory-ladenness of meaning；负载理论的数据；theory-laden data；理论价值区分；theory-value distinction；负载理论的观察；theory-laden observation；观察的理论负载性；theory-ladenness of observation；渗透了理论的观察；theory-impregnated observation；
数学：理论；
物理学：理论；