语言文字的不断发展,要求不断地定型和统一。这个问题是“老生常谭”。现就从这个“谭”字谈起,《辞海》释该成语源自公元三世纪西晋陈寿撰六十五卷本《三国志·魏志·管辂传》,这是正出。约二百年后,南朝宋刘义庆撰八卷本《世说新语·规箴》衍生为“常谈”。今虽“谭”、“谈”同义,但一般只习惯用后者,至于它的根源 The continuous development of language, requires constant determination and unity. This question is “often old Tan”. Now from this “Tan” word, “Ci Hai” interpretation of the idiom from the Western Jin Dynasty Chen Shizhen sixty-five volumes of the “Three Kingdoms Zhi Zhi Wei Zhi Biography,” which is out. About two hundred years later, the Southern Song and Liu Yiqing wrote eight volumes of “Shi Shuo Xin Yu Zong Zhen” as a “common talk.” Although this “Tan”, “talk” synonymous, but generally only used to the latter, as to its roots