先史时代 xiānshǐshídài prehistory Definitions Defs Origin Strokes Stroke Words Sentences Sents 先 xiān adverb first earlier in time or sequence; beforehand; in advance史 shǐ noun history (bound form) past events or human affairs; history时代 時代 shídài noun era a historical period, age, or epoch; often defined by specific political, economic, or cultural conditions
