theories

英 [ˈθɪəriz]

美 [ˈθɪriz]

n.  学说; 论; 说; 理论; 原理; 原则; (未证明的)意见; 看法; 推测
theory的复数

柯林斯词典

• N-VAR 理论;学说
  Atheoryis a formal idea or set of ideas that is intended to explain something.
  1. 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。
  2. 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 atheoryabout something, you have your own opinion about it which you cannot prove but which you think is true.
  1. There was a theory that he wanted to marry her...
     有人认为他想娶她。
  2. 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
  Thetheoryof a practical subject or skill is the set of rules and principles that form the basis of it.
  1. He taught us music theory.
     他教我们乐理。
  2. ...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 usein theoryto 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.
  1. 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。

双语例句

• The knowledge base of the project is formed on theories connected with working conditions and the quality of working life and empirical researches.
  这个项目的理论基础由关于工作条件和工作质量的理论以及经验调查组成。
• This innovation is the ecological security of the theories and methods used in eco-tourism resources development study.
  本文创新之处在于把生态安全的理论和方法运用到生态旅游资源开发研究中。
• In scientific research, one should break new paths and not be fettered by accepted theories.
  进行科学研究，不能囿于成说，要敢于创新。
• We shall use it as a yardstick in the following brief survey of the theories of static fatigue.
  我们在下面的静态疲劳理论的主要研究中将用它作为一个衡量的尺度。
• The results are discussed with regard to existing theories of basic research and practice in companies.
  对调查结果进行了讨论，考虑到研究理论的可移植性和对企业内部实战的依赖性。
• Psychiatrists become too caught up in their theories to deal adequately with reality.
  精神病专家太纠结于理论，无法很好地处理现实问题。
• We will then have a firmer foundation of fact on which to build theories
  那样我们将会获得一个建立理论所需的更为牢固的事实基础。
• The police have several theories about the case, but no hard evidence.
  警方对这个案件有好几种分析，但都缺乏确实的证据。
• Folk psychology comes closer to the obvious truth than the most sophisticated theories.
  比起最复杂的理论，大众心理学更接近那些显而易见的事实。
• Then, we introduce a single intersection and coordination of the basic theories and methods of control.
  其次介绍了单交叉口和协调控制基本理论和方法。