"What we need from these sites now are evidence of the stone tools themselves, so we can see if they were manufactured or were natural stones that happened to be used for butchery," he added.
“现在，我们需要从这些出土地点得到的就是关于石器工具本身的证据，所以我们能够预见，它们要么是经过打磨的石头，要么就是恰巧被用来屠宰的天然石头，”他补充说。
It's a synthetic stone product that can be used for flooring and is typically less expensive than natural stone.
它是一种人工合成的的石木产品，可用于地板，通常比天然石木更便宜。
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