Beaver away
忙于（某事）, 勤奋工作
🧩 词语组成解析
beaver
[['bi:və]]
n. 海狸(毛皮)\\n[机] 轻型及中型飞机加油
🗣️ 情景例句
Who isn't?
有谁不紧呢？
He's still a boy after all.
他毕竟还只是个孩子。
Now Alfred began a long series of skirmishes -- and within a month the Danes had surrendered.
这时，阿尔弗雷德发起一连串小规模的进攻，结果不出一个月，丹麦人就投降了。