Although copper and stone tools continued to be used, bronze was far more successful in creating sharp edges that could be used as anything from saws and scythes to weapons.
3
他们学习一些诸如大理石打磨,金属冶炼和铜器制造的实用技术,而不仅仅是造船术。
They're studying practical things like marble work, metal work, and copper work, not just shipbuilding.