zhè / zuò / chéng / qiáng / shì / dāng / dì / bǎo / cún / zuì / wán / zhěng / de / lì / shǐ / yí / jì / zhī / yī

这座城墙是当地保存最完整的历史遗迹之一。

This city wall is one of the best-preserved historic sites in the area.