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.
(..) most beautiful girl in school... ...and I let her slip through my fingers. But I won't let that happen to you. You're absolutely right. I'm just going to walk up to her and introduce myself. Tomorrow at school. Maybe. Probably not. Just go. - Hey, girls. - Hey, you came. (..)2009 17 Again