xǔ duō / gǔ lǎo / de / mín jiān / gē yáo / kào / kǒu ěr xiāng chuán / cái / dé yǐ / bǎo liú / xià lái

许多古老的民间歌谣靠口耳相传才得以保留下来。

Many ancient folk songs survived by being passed down orally.