先史时代 xiānshǐshídài prehistory Definitions Defs Origin Strokes Stroke Words Sentences Sents 先史时代 先史時代 xiānshǐshídài prehistory prehistoric times; the period of time before written records Cross-References Synonym 史前时代 shǐqiánshídài
先史时代 先史時代 xiānshǐshídài prehistory prehistoric times; the period of time before written records Cross-References Synonym 史前时代 shǐqiánshídài
