historical origins短语¹⁴⁴⁹⁷²⁺² 基本例句 历史渊源 Chapter2 is the historical origins of the personal danger theory. 第二章，人身危险性的理论渊源。591-lw Tang legends emerged in this foundation, which had its own profound historical origins, literary environment& society background. 唐传奇在此基础上的崛起，有其深刻的文学渊源、文学环境和特定的社会时代背景。 cnki