zhè / zuò / gǔ / chéng / xī / rì / rén / kǒu / hào / ráng / shāng / lǚ / wǎng / lái / shí / fēn / pín / fán

这座古城昔日人口浩穰，商旅往来十分频繁。

This ancient city was once densely populated, with merchants and travelers coming and going frequently.