"they had just moved in and had not put up blinds yet"
"a screen of trees afforded privacy" "under cover of darkness" "the brush provided a covert for game" "the simplest concealment is to match perfectly the color of the background"
"they put screens in the windows for protection against insects" "a metal screen protected the observers"
"a star of stage and screen"
"he heard the screen slam as she left"
"screen the blood for the HIV virus"
"screen the suitcases"
"screen these samples" "screen the job applicants"
"screen a film"
"block out the strong sunlight"