Mahabharata 9.3.38

प्रमुखस्थे तदा कर्णे बलं पाण्डवरक्षितम्दुरासदं तथा गुप्तं गूढं गाण्डीवधन्वना

pramukhasthe tadā karṇe balaṃ pāṇḍavarakṣitamdurāsadaṃ tathā guptaṃ gūḍhaṃ gāṇḍīvadhanvanā

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