由于影响需求的因素在不同的地区和环境存有很大差异，针对一种人群的研究成果通常不能借此推断另外一个人群。

Since factors influencing demand vary greatly by region and context, findings from one population cannot always be extrapolated to another.

youdao

由于影响需求的因素在不同的地区和环境存有很大差异，针对一种人群的研究成果通常不能借此推断另外一个人群。

Since factors influencing demand vary greatly by region and context, findings from one population cannot always be extrapolated to another.

youdao