There is no magic formula for passing exams—only hard work.

根本没有通过考试的魔法—只有勤奋学习。

《牛津词典》

It made us believe that discovery was the only hard part. Execution would be easy.

这种想法使我们相信，探索才是唯一困难的部分，而后面的执行过程则是轻而易举的事。

youdao

And by value, I don't mean only hard economic value, like sales or savings or new business. (Which in most cases is hard to quantify anyway.)

另外从价值角度上来讲，我并不仅仅只是指商业价值，就像销售收入，或者节省的，或者新的生意。(这种价值是很难衡量的)。

youdao

I did the only thing I could do. I hit him with my closed fist as hard as I could.

VOA: special.2010.07.17

PROFESSOR BAWENDI: The only But it's hard to imagine an irreversible compression the way we can just imagine an irreversible expansion.

,但是我们很难,像描述不可逆膨胀一样,来描述不可逆压缩。

麻省理工公开课 - 热力学与动力学课程节选

The "parable of the vineyard" assures us that God rewards us regardless of our hard work and investment, but only if we're called, only if God chooses us.

葡萄园的寓言“使我们确信,无论我们是否努力工作都会得到上帝的奖励，但除非上帝选择了我们。

耶鲁公开课 - 弥尔顿课程节选

Only hard assets were doing well: real estate, commodities, gold, silver.

FORBES: Dow Jones Interactive

Today there are only hard choices left.

BBC: Cyprus has only hard choices left, says EU's Olli Rehn

If success in school is a function of intelligence and hard work, and less intelligent students have to work harder to achieve the same grades as their more intelligent counterparts, only hard work seems to matter in predicting career success.

FORBES: What Makes Some MBAs Wildly Successful?