theory
英 ['θ??r?]
美['θi?ri]
- n. 理論；原理；學(xué)說；推測
英英釋意
- 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;
- "theories can incorporate facts and laws and tested hypotheses"
- "true in fact and theory"
- 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;
- "a scientific hypothesis that survives experimental testing becomes a scientific theory"
- "he proposed a fresh theory of alkalis that later was accepted in chemical practices"
- 3. a belief that can guide behavior;
- "the architect has a theory that more is less"
- "they killed him on the theory that dead men tell no tales"