theory

复数：theories

1. [C]学说 a reasonable or scientifically acceptable explanation for a fact or event
2. [U]理论,原理 general principles and knowledge as opposed to practical methods or skills
3. [C]意见,看法 opinion or supposition, not necessarily based on reasoning

• accept theory接受理论
• have a theory有一种说法

• abstract〔crude〕 theory抽象〔不成熟〕的理论

• in theory在理论上
• on the theory根据理论

• theory about writing写作理论
• theory of gravitation万有引力学说

in theory理论上

basic theory基本理论

control theory控制理论，控制论

game theory博弈论，对策论

system theory系统论

management theory管理理论

set theory集合论

economic theory经济理论；理论经济学

deng xiaoping theory邓小平理论

fuzzy theory模糊理论；含模理论

general theory一般理论；统一理论

learning theory学习理论；学习论

information theory信息论；情报理论

graph theory图论

field theory场论

reliability theory可靠性理论

probability theory概率论

political theory政治学理论

optimization theory最优化理论

wave theory[物]波动论；波动说

1. There're many theories about the origin of life.
   关于生命起源的学说有很多。
2. In theory, anything could happen.
   理论上来说,任何事情都会发生。
3. Not everyone can understand Einstein's Theory of Relativity.
   不是每个人都能读懂爱因斯坦的相对论的。
4. In his book, he explained the operating theories of computer in detail.
   在他的书中,他详细阐述了计算机的工作原理。
5. Mary is full of fascinating theories about men and women.
   玛丽对男人和女人充满了迷人的想法。
6. She has a theory that drinking milk prevents cold.
   她有一种说法,认为喝牛奶能防止感冒。