behind the times
01
跟不上时代, 落伍
(of a person) not keeping up with current trends, ideas, or advancements
贬义
习语
例子
He is behind the times when it comes to technology.
在技术方面，他跟不上时代。
02
(of a thing) outdated or no longer relevant to current trends or technology
习语
非正式
例子
His choice of music shows that he is behind the times, still listening to artists from decades ago.
