v.埋头苦干
beaver的过去式

原形：beaver第三人称单数：beavers复数：beavers过去式：beavered现在分词：beavering

We beaver away to get a solution.
我们埋头苦干为寻找到一个解决方法。
Mary has been beavering away at her report all morning.
玛丽一上午都在忙着她的报告。
Tom's been beavering away at the accounts all morning.
汤姆一上午都忙于做账。
The beaver is the national symbol of Canada.
海狸是加拿大的国家象征。
The beaver built an impressive dam across the stream.
海狸在小溪上建造了一座令人印象深刻的水坝。
The fur of the beaver is highly valued for making hats.
海狸的皮毛在制帽业中非常珍贵。
The beaver is known for its industrious nature.
海狸因其勤奋的天性而闻名。
In North America, beavers are commonly found near wooded waterways.
在北美洲，海狸常在树木繁茂的水域附近出没。
Beavers use their sharp teeth to cut down trees for their dams and lodges.
海狸用锋利的牙齿砍伐树木来建造水坝和窝。
The decline in beaver population is a concern for environmentalists.
海狸数量的下降让环保主义者感到担忧。
Beavers are social animals and typically live in family groups.
海狸是群居动物，通常以家庭群体生活。
Observing a beaver in its natural habitat is a fascinating experience.
在自然环境中观察海狸是一种迷人的体验。
Conservation efforts have helped to stabilize the beaver's population in some regions.
保护工作在一些地区帮助稳定了海狸的数量。