Question

theory n.学说；理论；原理；意见 (1) 关于生命起源的学说有很多。(2) 理论上来说,任何事情都会发生。(3) 不是每个人都能读懂爱因斯坦的相对论的。(4) 在他的书中,他详细阐述了计算机的工作原理。(5) 玛丽对男人和女人充满了迷人的想法。 A theory is a set of accepted beliefs or organized principles that explain and guide analysis and one of the ways that theory is defined is that it is different from practice, when certain principles are tested. For example, you could be a musician who plays well but who doesn't have a lot of experience with the theory of music. This word is a noun and comes from the Greek theoria, which means "contemplation or speculation."

Accepted Answer

英 ['θɪəri] 美 ['θɪri] (1) There're many theories about the origin of life.(2) In theory, anything could happen.(3) Not everyone can understand Einstein's Theory of Relativity.(4) In his book, he explained the operating theories of computer in detail.(5) Mary is full of fascinating theories about men and women. When you have a theory, you have a set of beliefs or principles that might not be proven yet. Does anyone have a good theory for where missing socks go when you do laundry? 1[N-VAR 可变名词]理论；学说 A theory is a formal idea or set of ideas that is intended to explain something.   [usu with supp]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。2[N-COUNT 可数名词]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. 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。3[N-UNCOUNT 不可数名词](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.   [usu with supp]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4[PHRASE 短语]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.   [PHR with cl]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。

英语单词	theory
英美音标	英 ['θɪəri] 美 ['θɪri]
中文释义	n.学说；理论；原理；意见
英语例句	(1) There're many theories about the origin of life. (2) In theory, anything could happen. (3) Not everyone can understand Einstein's Theory of Relativity. (4) In his book, he explained the operating theories of computer in detail. (5) Mary is full of fascinating theories about men and women.
中文例句	(1) 关于生命起源的学说有很多。 (2) 理论上来说,任何事情都会发生。 (3) 不是每个人都能读懂爱因斯坦的相对论的。 (4) 在他的书中,他详细阐述了计算机的工作原理。 (5) 玛丽对男人和女人充满了迷人的想法。
vocabulary简明	When you have a theory, you have a set of beliefs or principles that might not be proven yet. Does anyone have a good theory for where missing socks go when you do laundry?
vocabulary扩展	A theory is a set of accepted beliefs or organized principles that explain and guide analysis and one of the ways that theory is defined is that it is different from practice, when certain principles are tested. For example, you could be a musician who plays well but who doesn't have a lot of experience with the theory of music. This word is a noun and comes from the Greek theoria, which means "contemplation or speculation."
柯林斯解释	1 [N-VAR 可变名词]理论；学说 A theory is a formal idea or set of ideas that is intended to explain something. [usu with supp] 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。 2 [N-COUNT 可数名词]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. 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。 3 [N-UNCOUNT 不可数名词](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. [usu with supp] 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 4 [PHRASE 短语]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. [PHR with cl] 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。

Theory Set Principles Beliefs Explain Practice [Usu Supp