(noun.) 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'.
(noun.) 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'.
法耶手打
手打:斯坦