She helped to 'introduce' Americans 'to' European fashions. = She helped to 'introduce' European fashions 'to' America.
The new carpet 'introduces' some color into [=adds some color to] the living room.
The rivalry 'introduced' more drama to/into the competition.
(..) so you can torture me? Sansa Stark? I saw her riding on the East Road with Littlefinger. We'll follow them. May I introduce my son Ramsay Bolton? My lady. Welcome home, Lady Stark. The North remembers. (..)2015 TvShow: Game of Thrones Title: Kill the Boy Season: 5 Episode 5