So there could be no doubt that Aida had made a certain impression on him.
At times viewers may have felt lost in a blizzard of details, but certain overriding impressions came through.
An experience of that sort makes a certain impression.
Damon acknowledged that appearances in his social life create certain impressions.
Whether Friday's performance was seen more clearly at this distance or else hopelessly obscured because of it, certain impressions still registered.
But you only get a certain impression watching television - you don't feel the pressure or the intensity.
As to the why of it, we mean to correct certain impressions you have received.
They have a certain impression of what white people are like.
Jase would, in contact, however, hear himself in memory making these sounds and at the same time get a certain impression of their meanings.
Because Gore knows he has to overcome certain impressions - that, despite his 17 years in public office, he is not an electric politician.