diào / chá / rén / yuán / chá / míng / qíng / yóu / hòu / xiàng / jiā / shǔ / jiě / shì / le / shì / qing / de / jīng / guò

调查人员查明情由后，向家属解释了事情的经过。

After determining the circumstances, the investigators explained what had happened to the family.