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1. Oxford Dictionary

   theory

   • IPA[ˈθɪəri]

   英式

   • n.
     a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained；a set of principles on which the practice of an activity is based

   • noun: theory, plural noun: theories

2. • 釋義
   • 相關詞
   • 片語

   n.

   名詞

   • 1. a supposition or a system of ideas intended to explain something, especially one based on general principles independent of the thing to be explained Darwin's theory of evolution 同義詞 hypothesis, thesis, conjecture, supposition, speculation, ... 更多postulation, postulate, proposition, premise, surmise, assumption, presumption, presupposition, notion, guess, hunch, feeling, suspicion, opinion, view, belief, thinking, thought(s), judgement, contention, principles, ideas, concepts, principled explanations, laws, philosophy, ideology, system of ideas, science
   • ▪ a set of principles on which the practice of an activity is based a theory of education music theory
   • ▪ an idea used to account for a situation or justify a course of action my theory would be that the place has been seriously mismanaged
   • ▪ a collection of propositions to illustrate the principles of a subject.

   atomic theory

   • n.
     the theory that all matter is made up of tiny indivisible particles (atoms). According to ...

   Oxford Dictionary

   atomic theory

   • n.
     the theory that all matter is made up of tiny indivisible particles (atoms). According to the ...

   Oxford American Dictionary

   quantity theory

   • n.
     the hypothesis that changes in prices correspond to changes in the monetary supply.

   Oxford American Dictionary

   quantum theory

   • n.
     a theory of matter and energy based on the concept of quanta, especially quantum mechanics.

   Oxford Dictionary

   gauge theory

   • n.
     a quantum theory using mathematical functions to describe subatomic interactions in terms of ...

   Oxford Dictionary

   quantity theory

   • n.
     the hypothesis that changes in prices correspond to changes in the monetary supply.

   Oxford Dictionary

   kinetic theory

   • n.
     the body of theory which explains the physical properties of matter in terms of the motions of ...

   Oxford American Dictionary

   probability theory

   • n.
     the branch of mathematics that deals with quantities having random distributions.

   Oxford Dictionary

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   片語

   • in theory
3. • 更多解釋

   theory

   • IPA[ˈTHirē]

   美式

   • n.
     a supposition or a system of ideas intended to explain something, especially one based on ... Darwin's theory of evolution

   Oxford American Dictionary