Prehistoric Park史前公园
prehistoric tribes史前部落
prehistoric period史前时代
Prehistoric Animal史前动物
prehistoric power史前之力;洪荒之力
Prehistoric Mystery史前秘密
Prehistoric Kingdom史前王国
Prehistoric Hunter史前食肉兽
Evidences from archaeological and Quaternary geological researches have proved that the prehistoric flood events occurred frequently around 4000 a BP. The flood events’ characteristic, scale, cause and their influence on human cultural evolution have been a concern to researchers.
国内外考古学和第四纪地质学研究的大量证据表明,4000aBP前后是史前洪水频发的时期,这次史前洪水事件的性质、规模、起因以及它对人类文化演进的影响一直是国际学术界关心的问题。
参考来源 - 中原地区4ka BP前后异常洪水事件的沉积证据ADJ（形容词） Prehistoric people and things existed at a time before information was written down. 史前的
...the famous prehistoric cave paintings of Lascaux.
…拉斯科著名的史前洞穴绘画。