1.   There was a swift unromantic transition from the warm enclosed world of the aircraft to the hurly-burly of the airport.

2.   On one hand, there is the enclosed world of the Imperial Ballet.

3.   The piety of this enclosed world is ruptured when a group of bloodied women, fleeing the medieval equivalent of a pogrom, bursts on stage.

4.   Wong said if a young artist painted without guidance, he or she would only be seeing and expressing feelings in an enclosed world.