law: implies imposition by a sovereign authority and obligation of obeidience on the part of all who are subject to that authority: obey the ~.   (sovereign主权的: 意思是"最高")


rule: suggests closer relation to individual conduct and may imply restriction, usually in regard to a specific situation, for the sake of an immediate end: the ~ of the game.


regulation: a prescription by an authority to control an organization, situation or system: the ~ affecting neclear power plants.


precept: commonly suggests sth advisory and authoritative but not obligatory typically communicated through teaching: the ~ of effective writing.


statute: a law enacted by a legislative body: a ~ requiring the use of seat belts.


ordinance: applies to an order govening some detail of conduct or procedure, enforced by a limited authority such as a municipality: a city ~.


canon: in religious use applies to law of church, or in non-religious use, implies  principle or rule accepted  as a valid guide: a house that violates all the ~ of good taste.


law法律: 最高权力和服从义务, rule规则: 多指对个体行为的限制，以实现直接目的， regulation法规: 管控组织或系统, precept教导:权威的建议但非强制，通过教授, statute: 立法机构制定的法律, ordinance行政命令: 针对特定规程细节，执行部门权力有限, canon:宗教法或广为接受的指导原则、规则。


记忆方法: 1) 首字母，RuLeS  Of PRC:中国规则。

         2) 法规的意思是须遵循的行为准则mean a principle governing action or procedure.