a matter of law作为一项法律事项;法律问题
a matter of substantive law实体问题
as a matter of law由法律决定的事情
subject matter of civil law民法的调整对象
subject matter of international law国际法主体
N（名词） an issue requiring the court's interpretation of the law or relevant principles of the law 法律问题 [法律] → compare matter of fact