archaeologyof the old stone age 旧石器时期考古
The material of human fossil, culture relic and zoolite in the Old Stone Age are very abundant.
古代石器时代的人类化石，文物和人为动物的物质非常丰富。
This stone axe is a relic of the Old Stone Age.
这把石斧是旧石器时代的遗物。
The gap between the Old Stone Age and the New Stone Age once supposed to be a real hiatus, is being filled by a Middle Stone Age.
旧石器时代和新石器时代之间的间隔曾经被认为是个一个真正的间隔，现在被中时期时代所填补。
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