They make wooden tools with stone knives.

他们用石刀制作木制工具。

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Cavemen probably shaved with stone knives, and there's some suggestion that they may even have trimmed their hair with fire.

野人也许用石刀刮，有人甚至提议他们可以用火来修理头发。

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A lot of stone knives, clusters, axes, sickles have been unearthed in the cultural relics of Neolithic age in the Nile River valley.

尼罗河谷地的新石器时代文化遗址中发现了大量石刀、石簇、石斧、石镰等等。

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Sometimes stone knives would be lashed onto a bone or wooden handle for easier use.

FORBES: No. 1 The Knife

And even though it's been a very long time since the first knives were crafted out of stone, we haven't given up on that ancient manufacturing technique.

FORBES: No. 1 The Knife

To get his literary career rolling, Bushnell relied on veteran ghostwriter Gene Stone, who also has written other books, including "Forks Over Knives, " under his own name.

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