regularity

例句：

1. 1. The train is running on time, showing a high degree of regularity.
   火车准时运行，显示出很高的规律性。
2. 2.The students are required to follow the school's rules and maintain a regularity in their study habits.
   学生们被要求遵守学校的规则，保持学习习惯的规律性。
3. 3.The team's performance was highly irregular, with frequent changes in strategy.
   团队的表现非常不规律，策略经常改变。