然而，文化的分类因角度而异，因为文化是抽象的，是一种近似值，是一种趋势，是一个动态的过程。

Culture, however, is an approximation, a tendency, and an abstraction because it is a dynamic process, instead of a static one. So the classification of culture cannot be quite clear-cut.

youdao

Okay, 'a socially acceptable thing to be eating,' which of course will change from culture to culture even within a country, so that's very true.

好的 "社会认可的可食用的东西",当然这是因文化而异的,即使在一个国家里也是不同的,这种情况是很常见的

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选