a complex system of rules
a set of rules
follow a system of rules
establish a system of rules
1. Grammar is a complex system of rules that governs language.
语法是支配语言的一种复杂的规则体系。
2. To play this game, you must first understand its system of rules.
要玩这个游戏，你必须首先理解它的规则体系。
3. The country operates under a strict system of rules.
这个国家是在一套严格的规则体系下运作的。
A: Is it hard to learn this new coding language?
A：学习这门新的编程语言难吗？
B: It is not, as long as you master its system of rules.
B：并不难，只要你掌握了它的规则体系。
1) 一种运行的逻辑或机制
2) 一套制度或规章制度
3) 某种行为的约束准则
1. 一套规则或准则
e.g. The English language is a complex system of rules.
英语是一种复杂的规则体系。
noun
1. A set of principles or regulations that govern the functioning of a particular thing or organization.
Synonym: framework, structure, set of regulations