lǎo / fáng / zi / de / pái / shuǐ / xì / tǒng / lǐ / hái / bǎo / liú / zhe / jǐ / duàn / gāng / guǎn

老房子的排水系统里还保留着几段缸管。

The drainage system of the old house still contains several sections of earthen pipe.