不改变的

Old people don't like to vary their habits.

老年人不变他们的习惯。

The epigenome is a molecular marking system that controls gene expression without altering the DNA sequence.

Image credit: Dreamstime表观基因是在不变DNA序列的前提下控制基因表达的子标记系。

Constituents that can be substituted for one another without loss of grammaticality belong to the same syntactic category.

可以相互替换而又不变语法属的成属于同一句法型。