Collecting garbage is a thankless job, but someone's got to do it...

收垃圾是个没人感谢的工作，但总是得有人做。

youdao

Administering a WebSphere production deployment is often a thankless job.

管理WebSphere产品部署经常是一份吃力不讨好的工作。

youdao

Like our housework, it's a dirty and a thankless job, but it's also important.

就好像我们的家务那是个脏兮兮、费力不讨好的工作但是却是那么的重要。

youdao

In all fairness, to be an umpire today in Major League Baseball is a thankless job.

FORBES: The Plight of The Umpires And The Inevitability Of Instant Replay

Take a deep breath and say thank you for doing your best in a thankless job.

FORBES: Have You Thanked A TSA Agent Today?

Of course, for all of its importance education can be a thankless job.

FORBES: 30 Under 30: The Millennials Overhauling Education And Leaving No Child (Or Teacher) Behind