名词

1.可数名词：原则；原理

2.可数名词：主义；信条

3.可数名词：（机器等的）原理；构造；工作方式

4.不可数名词：道义，节操

5.起源，本源

英语解释

a rule or standard especially of good behavior

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

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

rule of personal conduct

a basic truth or law or assumption

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