Yağmur ormanları korunmalı. - Rainforests should be preserved.
Yağmur ormanları korunmalı.
Rainforests should be preserved.
Onlar binayı korudular. - They have preserved the building.
Onlar binayı korudular.
They have preserved the building.
... at least remarkably well preserved stadium ...
... and they have to be preserved. ...