Theoretical psychology includes two aspects: metatheory and substantive theory.
理论心理学包含两方面：元理论和实体理论。
Do we need a metatheory of the built environment?
我们需要建成环境的元理论吗？
A metatheory or meta-theory is a theory whose subject matter is some other theory.
元理论是以某个其它理论为主题的理论。
It is a problem of metatheory of moral education whether morality could be taught or not.
道德是否可教，是道德教育的元理论问题。
Theoretical psychology includes two aspects: metatheory and substantive theory, it is very important to the development of psychological science.
就其性质来说 ，理论心理学是一门非经验学科 ；就其范围来说 ，理论心理学包含两个大的方面 ：元理论和实体理论。
Theoretical psychology includes two aspects: metatheory and substantive theory, it is very important to the development of psychological science.
就其性质来说 ，理论心理学是一门非经验学科 ；就其范围来说 ，理论心理学包含两个大的方面 ：元理论和实体理论。
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