This variation doesn't necessarily translate to observable, or phenotypic, differences among people, however.

然，异并不一定转化为人与人之间观察到或表型差异。

The core microbiota is the same for all individuals while the variable microbiota is different between individuals in response to unique lifestyles and phenotypic and genotypic determinants.

所有人核心微生物群都是相同，微生物群则随着每个人生活方式、表型和基因型等决定因素不同各有不同。