1)hereditary system of sets,集的遗传系2)hereditarily generating system,遗传的生成系3)It's all to do with blood.,这是遗传的关系，4)genetic inheritance,遗传的遗传5)hereditary subset,遗传子集6)hereditary set,遗传集
用法和例句
Syntactic ordered semi-groups determined by hereditary subsets;
