lǎo / shī / shuō / fàng / liú / shì / gǔ / dài / chéng / fá / zuì / rén / de / yì / zhǒng / fāng / shì

老师说，“放流”是古代惩罚罪人的一种方式。

The teacher said that “放流” was a form of punishment used in ancient times to exile criminals.