Mahabharata 3.170.18

तदहं चास्त्रवर्षेण महता प्रत्यवारयम्शस्त्रवर्षं महद्राजन्विद्याबलमुपाश्रितः

tadahaṃ cāstravarṣeṇa mahatā pratyavārayamśastravarṣaṃ mahadrājanvidyābalamupāśritaḥ

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