Valmiki Ramayana 6.121.18

इमामपि विशालाक्षीं रक्षितां स्वेन तेजसा ।रावणो नातिवर्तेत वेलामिव महोदधिः॥

imāmapi viśālākṣīṃ rakṣitāṃ svena tejasā |rāvaṇo nātivarteta velāmiva mahodadhiḥ ||

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