beavering
v.
（海狸似地）拼命工作( beaver的现在分词 );
忙于（某事），勤奋工作;
例句:
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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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She's been beavering away at her homework for hours.
她连续几个小时都在忙着写作业.
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We watch him beavering away at his painting.
我们眼看着他拼命地画.
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But don't worry, the web team will still be beavering away to bring you the latest news online.
来自BBC
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Hard-working but softly spoken, he often stays late, beavering away on a laptop that is rarely out of arm's reach.
来自BBC
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The producer has obviously been beavering behind the desk to sex up this really quite ordinary album.
来自BBC