theory

名词 theory:

1. a well-substantiated explanation of some aspect of the natural world; an organized system of accepted knowledge that applies in a variety of circumstances to explain a specific set of phenomena
2. a tentative theory about the natural world; a concept that is not yet verified but that if true would explain certain facts or phenomena
   同义词：hypothesis, possibility
3. a belief that can guide behavior

1. 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。
2. In this way they can better apply theory to practice.
   这样他们就能更好地把理论运用到实践中去。
3. Only in 1687 did he at last publish his new theory.
   终于在一六八七年他发表了他的新理论。
4. 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。
5. Do you agree to the wave theory of light?
   你同意光的波动理论吗？
6. It is so in theory.
   理论上是如此。