zhèzhǒng / fēngní / zài / gǔdài / yònglái / mìfēng / zhújiǎn / wénshū / fángzhǐ / bèi / rén / sīchāi

这种封泥在古代用来密封竹简文书，防止被人私拆。

This kind of sealing clay was used in ancient times to seal bamboo-slip documents to prevent unauthorized opening.