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

  1. N-VAR 理论;学说
    A theory is 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。
  2. 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.
    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。
  3. 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.
    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
  4. 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.
    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。
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双语例句

  1. Many theories have been advanced as to why some women suffer from depression
    就一些女性患抑郁症的原因，各种说法纷至沓来。
  2. 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。
  3. There are many theories that claim to be able to predict whether you're carrying a boy or a girl.
    有许多理论声称能够预测胎儿的性别。
  4. They talked about the competing theories of the origin of life.
    他们讨论了几种相互矛盾的生命起源理论。
  5. Don't let yourself be distracted by fashionable theories
    不要让自己被流行的理论分散了注意力。
  6. 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。
  7. Over the years several similar theories have been put forward
    几年来已经有好几个类似理论相继提出。
  8. I was itching to get involved and to bring my own theories into practice
    我渴望参与其中，把我的理论付诸实践。
  9. All our theories sound pretty lame.
    我们的理论似乎全都站不住脚。
  10. Da Vinci was methodical in his research, carefully recording his observations and theories
    达·芬奇搞研究井井有条，会详细记录观察资料和理论学说。
  11. We'll always justify our actions with noble sounding theories
    我们总会用听起来非常高尚的理论为我们的行动辩护。
  12. This highlights a problem faced by people proposing theories of ball lightning
    这使得球状闪电理论的提出者所面临的一个问题凸显出来。
  13. 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。
  14. Physics is the best example of a science which has developed strong, abstract theories.
    物理学是自然科学中发展出了强有力的抽象理论的最好例子。
  15. Such theories are still very tentative.
    这种理论仍然是探索性的。
  16. Many theories on punishment exist, all of which are variations on a theme.
    关于惩罚的理论有很多，虽形式略有不同，但其主旨都是一样的。
  17. 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。
  18. Einstein's theories opened up a whole new field for study.
    爱因斯坦的理论揭开了一个全新的研究领域。
  19. 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。
  20. The two scientists stopped working together because their theories did not conform.
    这两位科学家理论不一致，因此停止了合作。
  21. The psychoanalysts have had no trouble in finding empirical confirmation for their theories.
    精神分析学家们已经不难找到证明其理论的事实根据。
  22. 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。
  23. These two theories described virtually all physical phenomena that had been studied then.
    这两个理论实质上描述了所有当时已研究过的物理现象。
  24. There is no end to searching into philosophical theories.
    对哲理的钩玄永无止境。
  25. All theories originate from practice and in turn serve practice.
    任何理论都来源于实践，反过来为实践服务。
  26. 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。
  27. 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。
  28. 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。
  29. 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。
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