Sanskrit
आचार्याः पितरः पुत्रास्तथैव च पितामहाः । मातुलाः श्वशुराः पौत्राः श्यालाः सम्बन्धिनस्तथा ॥
ācāryāḥ pitaraḥ putrās tathaiva ca pitāmahāḥ mātulāḥ śvaśurāḥ pautrāḥ śyālāḥ sambandhinas tathā
Translation
Teachers, fathers, sons, as well as grandfathers, mother's brothers, fathers-in-law, grandsons, brothers-in-law, and other relatives.
Annie Besant · The Bhagavad-Gita, translated by Annie Besant (4th ed., 1922) — Wikisource · Public Domain
Explanation
Arjuna repeats, now in his own argumentative voice, the same census Sanjaya narrated back in verses 26–27. The repetition is the point: this isn’t new information, it’s Arjuna insisting on it out loud, converting what he saw into the explicit premise of the argument he’s building.