What the author of primitive mentality means by " participation " is familiar enough.

原始心理的创始人采用 “ participation ” (参与)的含义是十分通俗的.

辞典例句

Not that these people were less clever than ourselves or had a more'primitive mentality '.

不是说这些人不如我们聪明,或有更多的 “ 原始心态 ”.

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