Work on it had begun before my sister left.

这座房子的工程在姐姐离开之前就已经开始了。

youdao

Work on it had begun before my sister left. The house was completed five months ago.

这栋房子在我姐姐离开之前就已动工了，是在5个月以前竣工的。

youdao

When I stopped to work on a new project, I said that I wasn't good at it because I had little experience with it.

当我停下来做一个新项目时，我认为我不擅长是因为我对它没有什么经验。

youdao

It either had work, got its heat from the surroundings, or it got worked on by the surroundings.

系统从环境中，得到热量。

麻省理工公开课 - 热力学与动力学课程节选

Nabokov When we moved on to Nabokov, we had an author trying to imagine a work of art so autonomous from the world that it could be something like an autonomous form of life.

接下来我们说了，这是一位试图将文学作品想象为发自世界,以至于成为生活的一种自主形式的作家。

耶鲁公开课 - 1945年后的美国小说课程节选

The council said it had been concentrating on carrying out essential safety work until it had received further detailed information.

BBC: Ystalyfera landslip clear-up given go-ahead

And in the case of phone hacking by Rupert Murdoch's News of the World tabloid, the parent company tried to downplay what had happened for years, claiming it was the work of one rogue reporter when in fact it had happened on an industrial scale.

CNN: BBC in crisis: What have we learned?

The amount of private work being taken on had not increased, it found, the rate of decline in productivity had slowed, the ratio of full-time consultants to total staff in the NHS had risen and pay rises not linked to performance had slowed.

BBC: Doctor in a hospital in Gloucestershire