Yán / jiū / rén / yuán / tōng / guò / kǎo / gǔ / zī / liào / tàn / yuán / zhú / bù / huán / yuán / le / gǔ / chéng / de / fā / zhǎn / guò / chéng

研究人员通过考古资料探源，逐步还原了古城的发展过程。

Researchers traced the origin through archaeological materials and gradually reconstructed the development of the ancient city.