Read Edit View history 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