rule/ruːl/

n. an instruction that tells you how sth should be done or what is allowed

v. have the official power to control a country

n. [C] 规则；规定：the rules of a game 游戏规则

◇break the school rules 违反校规

◇the rules of grammar 语法规则

◇Smoking at school is against the rules. 上学抽烟是违反规定的。

v. [T; I] 统治；支配：The king ruled the country for 50 years. 这个国王统治这个国家有50年。

构词源自regular