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Wild beavers are nocturnal and elusive, so telling if the females are pregnant can be tricky. Now, after weeks of speculation, staff and volunteers in the Knapdale Forest in Argyll have been rewarded with the sight of not one, but two newborns. The k...
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beaver, ['bi:və] n 海狸（一种大的啮齿目动物，有厚密的褐色毛皮和适合于咬树皮、弄倒树木、建水坝及水下巢穴的尖锐前齿） 【记】海狸特别勤奋，所以eager beaver指做事特别卖力气的人（特别...
Larry在跟李华讲他办公室里新来的实习生。今天李华会学到两个常用语：eager beaver和grunt work。 LL: A new intern started working in my office today. He sure is an eager beaver, Li Hua! LH: Beaver不是海狸吗？动物怎么...
