He's hard at work on a new novel.

他正努力忙着写一本新小说。

《牛津词典》

He is still at work on the painting.

他仍在忙着画那幅画。

《牛津词典》

He says you're fired if you're not back at work on Friday. And I think he meant it.

他说如果你周五不回来上班的话，就会被解雇。我想他是当真的。

《柯林斯英汉双解大词典》

William Thornton is hard at work on a set of building drawings.

VOA: special.2010.01.27

The work that goes on at the Center for Educational Computing Innovations really falls into three Different intersecting areas.

教育主动性计算机研究中心,的研究工作主要可以归为,三个不同的领域。

麻省理工公开课 - 媒体、教育、市场课程节选

A lot of students, in terms of on campus, will work at some of the eateries on campus

很多学生，在校园里的话，会在校园的小吃店工作。

在研究所工作 - SpeakingMax英语口语达人

He's already hard at work on his next novel, also set in the criminal underworld.

CNN: 'Angel Baby' author prefers grime to crime

Marco Rubio, a Florida Republican who has been among the lawmakers at work on the overhaul.

WSJ: Lawmakers ready to unveil immigration deal

Mr Liu was at work on a model boat, his tools laid out in exquisite order.

BBC: Here be dragons