Mahabharata 7.67.10

तदद्भुतमपश्याम द्रोणस्याचार्यकं युधियतमानो युवा नैनं प्रत्यविध्यद्यदर्जुनः

tadadbhutamapaśyāma droṇasyācāryakaṃ yudhiyatamāno yuvā nainaṃ pratyavidhyadyadarjunaḥ

Our plain-language meaning of this verse is waiting for scholar review.