落后于

• trail
• take the dust of
• got behind with
• get bihind with
• lag

例句

1. 在我们看来，他是一个落后于时代的人。
   He belongs to a world that seems to us now as dead as the dodo.
2. 思想落后于现实的事是常有的。
   It often happens that thinking lags behind reality.
3. 然而思想落后于实际的事是常有的。
   It often happens, however, that thinking lags behind reality.