[Grammar] passive voice or none

[hitinvo]

Is this sentence correct?
People oppressed by totalitarianism.
Thanks,

 

[emsr2d2]

Is this sentence correct?
People oppressed by totalitarianism.
Thanks,

This is not a sentence as it lacks a verb.

"People are oppressed by totalitarianism", maybe?

Or it needs to continue: "People oppressed by totalitarianism are very unhappy" (for example).

 

[hitinvo]

thanks,