Definition: used to talk about a period in the past Level: B2
在那些日子里，大多数家庭都没有汽车。
___In ___those ___days, most families didn't own a car.
在那些日子里，科技没有今天这么先进。
___In ___those ___days, technology was not as advanced as it is today.
在那些日子里，我们每天都会在外面玩。
We used to play outside every day ___in ___those ___days.
