τὸ ἀνάλημμα καὶ τὴν ἐπ' αὐτοῦ κερκίδα → the retaining wall and the wedge of theatre seats supported by it
εἰκοσιτέτταρες: α οἱ, αἱ, τά indecl. двадцать четыре Diod.