Scientists had been puzzled by the fine-grained and often reddish coloured silicate blades and axes excavated from prehistoric sites at Pinnacle Point on the South African coast.

科学家们曾为这些精心打磨、常现淡红色的砾岩石刃石斧所迷惑，这些器具是从南非海滨的史前遗址挖掘出来的。

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Professor Curtis Marean, of the Institute of human Origins at Arizona State University discovered ancient human artifacts in the isolated caves around an area known as Pinnacle Point, South Africa.

亚利桑那州立大学人类起源研究所的柯蒂斯·马里恩教授在南非尖塔顶(品尼高点)地区附近的偏僻洞穴中发现了古人类遗迹。

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While it won't be an SUV, it will be sure to have a "pinnacle price point, " says BMW sales chief Ian Robertson.

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