eager beaverEnglishOxford Dictionary of Englisheager beaver /ˌiːɡə ˈbiːvə / ▸ noun informal a keen and enthusiastic person who works very hard: these kids are real eager beavers eager beavers can get early access for free.
EnglishOxford Dictionary of EnglishEnglishOxford Dictionary of English
EnglishOxford Dictionary of English