behind the times
01
跟不上时代, 落伍
(of a person) not keeping up with current trends, ideas, or advancements
disapproving
idiom
例子
My boss is behind the times and still refuses online meetings.
我老板跟不上时代，到现在还拒绝线上会议。
02
(of a thing) outdated or no longer relevant to current trends or technology
idiom
informal
例子
His choice of music shows that he is behind the times, still listening to artists from decades ago.
