他通过努力工作取得了成功。

He succeeds by dint of sheer hard work.

《柯林斯英汉双解大词典》

通过努力，最终他成功成为了最优秀的学生。

Through hard work, he eventually managed to become a student of the first rank.

youdao

通过努力学习，他现在只需再修两个学分就可以毕业了。

After all his hard work, he now needs only two credit hours to graduate.

《柯林斯英汉双解大词典》

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

I'll let that person sit there because that person clearly didn't make the investment.

我就不会让他通过这门课,因为他显然没有尽任何的努力。

麻省理工公开课 - 固态化学导论课程节选

But rather reason, he says, is attained by industry,by work, and it is developed first, he says, by the imposing of names on things, the correct names on things, and second by getting a good and orderly method of study.

他说，理性是通过辛勤的努力得来的，理性的形成，是通过使用事物的名称，事物正确的名称形成的，第二，是通过获得一种良好,而有有条不紊的学习方法形成的。

耶鲁公开课 - 政治哲学导论课程节选