behind the times

adj. 落在时代后面的(过时的, 落伍的, 落后的, 不合时宣的)

例句与用法：

The law is behind the times on a number of important issues.

这项法律就一些重大问题的条文规定已落后于时代。

It was a sleepy little town, about fifty years behind the times.

那是一个死气沉沉的小镇，落后于时代约达五十年。