It was incredibly hard work.

那是个非常艰辛的工作。

《柯林斯英汉双解大词典》

He found it hard to settle to his work.

他觉得定不下心来工作。

《牛津词典》

Though it is hard work, it is still a solvable problem.

虽然这是一项艰巨的工作，但仍然是一个可以解决的问题。

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Madam C.J.Walker explained it this way: "If I have accomplished anything in life, it is because I have been willing to work hard."

VOA: special.2010.03.28

The "parable of the talents" rewards hard work and investment; and it's satisfying because it does that, but it also instills an anxiety about non-productivity.

才能的寓言“奖励努力工作和投资的人;,这很令人满意，但同时它也会造成关于无生产力的忧虑。

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But I think unless you marry it, inherit it or work really hard for it,

我觉得除非你嫁人、继承或者努力工作，

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The realization, even at age 10, that you can create real, tangible things if you think about it long enough, and work at it hard enough.

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Others saw it as hard work and it was not clear how it would bring benefits.

UNESCO: Title

"Let's put it this way: I work very hard at it, " Heimlich told CNN.

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