英语词汇“blade tool”的英英意思、用法、释义、翻译、读音、例句、短语、词组-英语词典-现代词典

单词	blade tool
释义	Blade Tool A relatively sophisticated tool meticulously carved from fine grained rock, which is thought by anthropologists to have been the first tool produced 80,000–90,000 years ago by Homo sapiens in Africa
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Blade Tool