Keep the rules short and use easy-to-understand language. Make sure the tone of the rules is respectful to your students.

保持规定简短，使用容易理解的语言。确保规定的基调尊重你的学生。

The rules are highly specific and keep the number of valid alternatives to a minimum.

非常详细的规则确保产生最小数量的有效可选方案。