But a researcher [Julio Mercader], from the University of Calgary, decided to survey 70 stone tools found in one of the deep chambers of a long cave.
但来自卡尔加里大学的研究人员胡里奥·梅尔卡德不同意上诉结论，他决定通过检测在一处又深又长的远古洞穴中发现的70件石器一探究竟。
But a researcher [Julio Mercader], from the University of Calgary, decided to survey 70 stone tools found in one of the deep chambers of a long cave.
但来自卡尔加里大学的研究人员胡里奥·梅尔卡德不同意上诉结论，他决定通过检测在一处又深又长的远古洞穴中发现的70件石器一探究竟。
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