n. 1.理论，学理，原理。 2.学说，论说 (opp. hypothesis)。 3.推测，揣度。 4.〔口语〕见解，意见。 短语和例子 the theory of two points 两点论。 Darwin's theory of evolution 达尔文的进化论。 theory of equations 【数学】方程论。 theory of everything 【物理学】(把相对论、量子论和宇宙大爆炸理论都包括在内的)万用理论。 theory of relativity 【物理学】相对论。 the atomic theory 原子说。 Our scheme is good both in theory and in practice. 我们的方案在理论上和实施上都是好的。 combine [separate] theory with [from] practice 理论结合[脱离]实际。 My theory is that we must bring new blood into the Institute through appointment of younger men to important positions. 我的意见是我们学院应该通过重用年轻一些的人来注入新的血液。 theory of games 博弈论，对策论，权衡利弊得失的形势分析。
a tentative insight into 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" 同义词：hypothesis, possibility,
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"
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"
Theory is a contemplative and rational type of abstract or generalizing thinking, or the results of such thinking. Depending on the context, the results might for example include generalized explanations of how nature works, or even how divine or metaphysical matters are thought to work.
例句与用法
1.
In eighteenth century the theory shrank . 在18世纪这种理论开始衰落。
2.
These theories drew analogies of them . 这些理论吸取了它们的相同点。
3.
In theory the plan should have worked . 按理论那个计划应该是有效的。
4.
The mathematics of the theory is too formidable . 理论中的数学太难。
5.
All the facts certainly fit your theory . 所有的事实当然符合你的理论。
6.
An example is the kinetic theory of gases . 一个例子是气体的运动理论。
7.
Your theory disaccords with my experience . 你的理论和我的经验不一致。
8.
Let us put his theory to the proof . 让我们来检验一下他的说法吧。
9.
His theories met with general discredits . 他的理论遭到普遍怀疑。
10.
Theory must not be divorced from practice . 理论与实践不能脱节。
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