In the first part, each theory has its breeding soil, that is no exception.

第一部分，每一种理论都有其产生的土壤，这里也不例外。

youdao

In the first part, each theory has its breeding soil, that is no exception.

第一部分，每一种理论都有其产生的土壤，这里也不例外。

youdao