从复原的工具的印记上可以看出它们被用作来像磨谷粒的磨石、捣杵。

The markings on the recovered tools suggest that they were used like grindstones and pestles for processing grains.

youdao

从复原的工具的印记上可以看出它们被用作来像磨谷粒的磨石、捣杵。

The markings on the recovered tools suggest that they were used like grindstones and pestles for processing grains.

youdao