Mahabharata 7.171.14
अपकृष्यमाणः कौन्तेयो नदत्येव महारथःवर्धते चैव तद्घोरं द्रौणेरस्त्रं सुदुर्जयम्
apakṛṣyamāṇaḥ kaunteyo nadatyeva mahārathaḥvardhate caiva tadghoraṃ drauṇerastraṃ sudurjayam
Our plain-language meaning of this verse is waiting for scholar review.
Open in the book