Zhè / wèi / xué / zhě / zhèng / zài / yán / jiū / dāng / dì / jǐ / gè / gǔ / lǎo / jiā / zú / de / miáo / yì这位学者正在研究当地几个古老家族的苗裔。This scholar is researching the descendants of several ancient local families.