Read Edit View history Discussion 史前期 shǐqiánqī prehistoric period Origin Definitions Defs Strokes Stroke Words Sentences Sents 史前期 shǐqiánqī prehistoric period the period of time before written history was recorded Cross-References Synonym 史前时代 shǐqiánshídài
史前期 shǐqiánqī prehistoric period the period of time before written history was recorded Cross-References Synonym 史前时代 shǐqiánshídài