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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

  • 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。
  • All our theories sound pretty lame.
    我们的理论似乎全都站不住脚。
  • 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。
  • 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。
  • There is no end to searching into philosophical theories.
    对哲理的钩玄永无止境。
  • 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。
  • 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。
  • 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。
  • 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。
  • Such theories are still very tentative.
    这种理论仍然是探索性的。