zhū / sì / shì / zhōng / guó / gǔ / dài / wén / xiàn / zhōng / cháng / jiàn / de / liǎng / gè / hé / liú / míng / chēng

洙泗是中国古代文献中常见的两个河流名称。

Zhu and Si are the names of two rivers often found in ancient Chinese texts.