青云翻译

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A science, which studies a category of things to study such things in the relationship between changes of individual members and the members.

A science, it studies some kind of thing, studies in this kind of thing between each member's change as well as these member's relations.

a science that studies a certain category, to study this type things, things change, as well as various Members of the relationship between these Members.

A science, which studies a category of things to study such things in the relationship between changes of individual members and the members.