大多数人在半夜时都在睡觉，但如果我开夜车的话，我那时正在工作。

Most people are sleeping by midnight, but if I am burning the midnight oil, I am working at that time.

youdao

那时候我正在为美国广播公司一个叫《前线》的系列纪录片工作，我们正尝试着找一种方法解决美国的人种问题。

I was working at a PBS documentary series called "Frontline" and we were trying to figure out a way to get at the race question in the United States.

youdao

我那时正在熟悉这个工作，有很多问题要请教我老板。

As I was just getting familiar with this job, I had much to ask my boss.

youdao