He works extremely hard and therein lies the key to his success.

他工作极其努力，这就是他成功的关键。

《牛津词典》

Everything he achieved in life was earned the hard way and his success in the literary field was no exception.

他在生活中所取得的一切都是来之不易的，其在文学领域的成功也不例外。

youdao

Talent, hard work and sheer tenacity are all crucial to career success.

才能、勤奋和百分之百的执著对事业成功都是至关重要的。

《柯林斯英汉双解大词典》

That means that a person can rise from poverty to wealth and success if he or she works hard.

VOA: special.2010.05.16

Somebody starts out poor and makes his way through hard work and dedication and effort to riches and success.

他白手起家,通过努力工作,奋发图强，最终得到荣华富贵。

耶鲁公开课 - 死亡课程节选

China has always been a country that celebrates hard work and success in business.

FORBES: Why Corporate Governance is So Important to China

He stressed to his players the importance of working hard and carrying their success over into the regular season with their major league teams.

WSJ: WBC players look to sustain success

"The perception is one that exists and that we're not going to change apart from with hard work, good success and the kids putting their minds to the training, " Bates told BBC Sport.

BBC: British tennis battles against perceptions