Home/retroserrateretroserrate/re-troh-ser-it, -eyt/US // ˌrɛ troʊˈsɛr ɪt, -eɪt //回溯,追溯,溯源,补课Definitionsadj.形容词 adjective1 Botany, Zoology.: having retrorse teeth or barbs.Level 3Browse all words →