这里的while翻译成什么好，我觉得写成since更合适：
Archaeologists find that even the most isolated residences during the
eleventh and twelfth centuries obtained some pottery, and probably food, from
some distance away, while major ceremonial events were opportunities for
sharing food and crafts.
我觉得翻译成“因为”比较合适，但很明显while没有这个意思
