?? ?????? ???????? ????? ?????????????? ??? ???????? ?????? ????????? ??? ? ????????????? ??? ??????? ??????? ?? ???????? ??? ?????.Employed by Fb to deliver a series of ad products and solutions including serious time bidding from 3rd party advertisers.?? ???????????? ????? ??????? ??? ??? ????????????? ??????.???? ?????? ??? ????????? ? ??? ????