He worked tirelessly for the cause of health and safety.

他为健康和安全事业孜孜不倦地工作。

《柯林斯英汉双解大词典》

She worked tirelessly and had the knack of remembering everyone's name.

她不知疲倦的工作，而且能够记住每个人的名字。

youdao

Tonight, we give thanks to the countless intelligence and counterterrorism professionals who've worked tirelessly to achieve this outcome.

我们要感谢那些情报和反恐界的专业人士，正是他们孜孜不倦的工作才促成了今天的胜利。

youdao

Georgiana would live in a beautiful room he had prepared nearby, while he worked tirelessly in his lab.

VOA: special.2009.09.26

She worked tirelessly to get Congress and the states to approve an amendment to the United States Constitution that would provide equal rights for women.

VOA: special.2009.10.18

"I am very proud of the efforts of the U.S.military and many other departments and agencies that worked tirelessly to resolve this situation,"

VOA: standard.2009.04.13

And I just want to thank everybody who's worked tirelessly here to deal with this tragedy.

WHITEHOUSE: Remarks by the President After Hospital Visit

It said Mr Evans was "widely liked and respected" and had "worked tirelessly" for his constituents.

BBC: Nigel Evans denies rape claim as 'completely false'

He worked tirelessly, and began to learn German, Spanish, Italian, French, and even some Turkish.

NEWYORKER: Roulette Russian