in those days

基本解释

We always lived from hand to mouth in those days.
那时候，我们总是过着朝不保夕的生活。
《新英汉大辞典》
He went beyond the bounds of reason in those days.
他那时候太狂妄了。
《新英汉大辞典》
One of the hazards of living in those days will include getting conked by spare rocket parts falling from the sky.
生活在那些日子的危险事件将包括头部会被天空掉下来的火箭零件击中。

In those days, most women were expected to marry, have children and stay home to take care of them.
As I told the teaching fellows, I had a colleague in those days who looked at me enviously and said he wished he had the black leather concession at the door.
我跟学生讲，有个同事特别羡慕我,希望自己的门上也有那样的黑色皮革。
耶鲁公开课 - 文学理论导论课程节选
And then further you put some recording device, which in those days was a photographic plate, far across a room. So you take a tiny, tiny angle and you go far enough across the room.
接着放一些记录设备，那时用的是一个摄影用的感光片，取一个极小极小的角度,然后去到房间中足够远的地方。
麻省理工公开课 - 固态化学导论课程节选

Bad vintages of Bordeaux were really bad in those days: tonsil threatening or just plain watery.
FORBES: Back to the Future