εὖ γ᾽ εὖ γε ποιήσαντες ὦ Διοσκόρω → well done, well done, you twin Dioscuri!
subs.
Accountant: P. εὔθυνος, ὁ, λογιστής, ὁ.
Hearer: P. ἀκροατής, ὁ, or use adj., P. and V. ἐπήκοος.