| 单词 | protohistory | 
| 释义 | Word Frequency protohistory(ˌprəʊtəʊˈhɪstərɪ, -ˈhɪstrɪ) noun the period or stage of human development or of a particular culture immediately prior to the emergence of writing  Derived forms protohistoric (ˌprəʊtəʊhɪˈstɒrɪk) adjective  | 
	
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