英 [ˌiːɡə ˈbiːvə(r)]
勤奋的人：指愿意非常努力工作的人。
eager beaver //
名词 a person who displays conspicuous diligence, esp one who volunteers for extra work (尤指自愿做额外工作的)特别卖力的人
Calm down! You're such an eager beaver!
安静点！你太心急了！
The boy is an eager beaver. All of us like him.
他是个勤快的小伙子，大伙儿都喜欢他。
Mike is an eager beaver but he is not very organized.
麦克干活很勤快，但不是很有条理。
Tibetans who had collaborated in the Chinese takeover and who later fell victim to China's deadly political battles entered the work camps exuding ideological solidarity and eager-beaver enthusiasm, rushing from place to place with their heavy loads of stone.