To answer the first part of your question, I'd like to say that our studies were very extensive.
你问题的第一部分,我要说的就是我们的研究非常广泛。
Pretending to speak seriously, one of the workmen asked if he might make a telephone call before being taken to the station.
其中一个工人装模作样地问道,在被带往警察局之前,是否可以打一个电话。