ЗНАЕШЬ (-ете) ЛИ collthese forms onlysent adv (parenth)) used to attract the hearer's attention to what has been said or to emphasize the speaker's attitude toward sth. : you know.
«Ну, с талантами, знаете ли, расправляться проще простого» (Войнович 4). "But, you know, nothing could be simpler than making short work of talented people" (4a).