题目内容：

历史文化非常久远的成语是什么?

优质解答

源远流长1、汉语词典yuányuǎn－liúcháng(1)[of long standing and well established as a stream runs a long course from a remote source]∶因源头远而流程长(2)[long history]∶指传统或历史长久言其所学之正...