Matthias rules

例句：

1. 1. The maths teacher is strict but fair.
   这位数学老师严格但公平。
2. 2.He has a Matthias rule for everything in his office.
   他在办公室的每件事都遵循一个马修规则。
3. 3.This book follows the Matthias rule of using only one color throughout its pages.
   这本书遵循马修规则，全书只用一种颜色。