He had three sons and they all worked in the same factory where he had worked.

他有三个儿子，他们都在他工作过的同一家工厂工作。

youdao

He could remember a time when he had worked like that himself.

他还记得当他自己也像那样工作的那段时间。

《柯林斯英汉双解大词典》

If he had worked harder when young, he would be well off now.

如果他年轻时多努力一点，现在就能过得舒服些。

youdao

He had worked hard to win the nomination for Senator Clay.

VOA: special.2009.01.22

He got talented, respected members of the community who people admired to become life insurance salesmen and he had to pay them enough so that they would stick with the job; then it finally worked.

他将社区中那些具有天赋且受人欢迎的人,聘为寿险推销员,并且通过高薪来激励他们坚守岗位,这个策略最终成功了

耶鲁公开课 - 金融市场课程节选

He had worked in politics for a number of years.

VOA: special.2010.04.29

Previously he had worked at Royal Aberdeen Infirmary in 2005 and Southampton Royal Hospital in 2006.

BBC: King's Mill Hospital, Nottinghamshire

Travis Post, a gangly twenty-two-year-old, mentioned that he had worked with immigrants on a landscaping crew.

NEWYORKER: The Hardest Vote

He had worked at his craft, mastered its forms and still had untapped reserves of invention.

NPR: Haydn In Concert: Cue The 'Drum Roll'