of, relating to, or denoting the period before written records
(与)有文字记载历史以前(有关)的,(与)史前(有关)的
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prehistoric man .史前人类。
〈非正式〉 老旧不堪的;原始的;过时的
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my dad's electric typewriter was a prehistoric machine .我爸的电动打字机简直是台老古董。
"mid 19th cent.: from French