There are two forms of knowledge: subjective knowledge and objective knowledge.

知识有两种存在形态：主观知识和客观知识；

youdao

Attribute distribution-oriented mining method of commodity subjective knowledge.

面向属性分布的商品主观知识的挖掘。

youdao

Commentary belongs to a category of discussion, mainly making use of discussion, and it is subjective knowledge in essence.

新闻评论属于议论文的范畴，主要运用议论手法，本质上属于主观认识。

youdao

Mapmakers operate in environments of subjective knowledge.

ECONOMIST: A history of mapmaking: Views of the world | The