"原始人"是个多义词，它可以指原始人（早期人类）,原始人（游戏）。
一块羚羊颌骨内部的痕迹表明，这些原始人割了它的舌头。
The marks on the inside of one antelope jaw showed the primitive people cut out the tongue.
昨天，追溯到320万年前的原始人骨架重建“露西”首次亮相。
The early human skeleton reconstruction "Lucy" dating back 3.2 million years debuted yesterday.
"这一理论的提出是以画中出现的碎片作为证据，这些碎片可能是原始人向壁画投掷长矛时留下的。
This theory is suggested by evidence of chips in the painted figures, perhaps made by spears thrown at the drawings.
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