制定规则怎么说英语

To formulate rules in English, you can say:
"To establish rules"
"To create guidelines"
"To set regulations"
"To devise a code of conduct"
For example:
"We need to establish some rules for the team to follow."
"The company has created guidelines for employees to follow when using social media."
"The government has set regulations for companies to reduce their carbon emissions."
"The organization has devised a code of conduct for all members to adhere to."