n. 原则, 原理, 道义, 节操

n a basic generalization that is accepted as true and that can be used as a basis for reasoning or conduct

n a rule or standard especially of good behavior

n a basic truth or law or assumption

n a rule or law concerning a natural phenomenon or the function of a complex system

n rule of personal conduct

n (law) an explanation of the fundamental reasons (especially an explanation of the working of some device in terms of laws of nature)