规定的制度regulation

• 交通规则

  rules of the road

• 工厂管理规则

  factory management regulations

• 语法规则

  grammatical rules

• 象棋规则

  Chinese chess rules

• 议事规则

  rules of procedure

• 会议规则

  rules of order

• 卫生规则

  sanitary regulations

• 使用规则

  rules of use

• 合乎规则

  in line with regulations

• 违反规则

  break the rules

• 定出规则

  make the rules

合乎一定规则regular

• 规则四边形

  regular quadrilateral

• 不规则球形

  irregular sphere

• 呼吸不规则

  irregular respiration

规律，法则rule