一个洞穴，发现了北京人（Pithacanthro-pus Pekinensis）的颅骨化石。头盖骨
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发现了北京人
Found Peking man
以上为机器翻译结果，长、整句建议使用 人工翻译 。
人们在龙骨山的北坡发现了北京人及其近亲居住过的四处遗址。
Four sites where Beijing Man and his relations lived were discovered on the northern face of Dragon Born Hill (Longgushan).
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