(海狸似地)拼命工作( beaver的现在分词 );忙于(某事),勤奋工作;
We watch him beavering away at his painting.
我们眼看着他拼命地画.
She's been beavering away at her homework for hours.
她连续几个小时都在忙着写作业.
They are beavering away to get everything ready for us.
他们正在竭尽全力准备我们所需的一切。
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