I can promise you one thing: whatever you choose to do for a career, if you work hard at it, eventually special things will happen.

我可以向你保证一件事：无论你选择什么职业，只要你努力工作，最终会有不一般的事情发生。

youdao

People tend to work hard at this stage of life.

人在这个人生阶段往往发奋努力。

《牛津词典》

He began to work hard at it.

他开始为之努力。

youdao

Many students work hard at summer jobs.

VOA: special.2010.06.18

I mean, they have no idea how hard we work, and look at this gigantic split infinitive, to dramatically help.

他们不知道我们有多么努力地工作，注意到这之间的巨大鸿沟，会有很大的帮助。

麻省理工公开课 - 固态化学导论课程节选

And so, just a lot of hard work and a lot of time at the golf course in the summer.

所以，夏天时，一直努力练习，在高尔夫球场花了不少时间。

高尔夫俱乐部的回忆 - SpeakingMax英语口语达人

On the other hand, I take no medications, I work hard at eating a healthy diet and avoiding excess.

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Immigrants tend to inject into stale, ageing countries fresh vitality, fresh energy and an uncommon willingness to work hard at unappealing jobs.

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There are so few good funds out there because there is no incentive for funds to work hard at putting together quality portfolios.

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