永远不要自满，否则会落后于人。

Never be satisfied with yourself, or you will fall behind others.

我不希望我的学生落后于时代。

I don't want my students to fall behind the times.

由于机会减少而落后于其他人。

Lag behind the others due to decreased opportunities.

在协作方面落后于其他学科。

It lags behind other disciplines in collaboration.

代码破解从来不会远远落后于代码编写。

Code breaking never lags (落后) far behind code making.

因此，日落后的小晚餐变成了一天中的大餐。

So the formerly small supper after sundown becomes the big meal of the day.

担心在效率上落后。

The fear of falling behind in efficiency.

英国发展落后是我们软弱的地方政府所导致的。

That the UK lags behind is due to our weak, local government.

按照国际标准，英国落后是因为我们的地方政府软弱无力。

That the UK lags behind is due to our weak, by international standards, local government.

在为职业女性作出调整方面，家庭方面远远落后于工作场所。

The home front lags well behind the workplace in making adjustments for working women.