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.
(..) see before you a very disillusioned man. Disillusioned and with a gun. He's obviously not with the hotel. No, no. Allow me to introduce Sir Colonel Sharki of the Lugash Secret Police. Aha. That explains the gun. Hmm. I foolishly believed that your husband was a man of integrity. (..)1975 The Return of the Pink Panther
(..) If I knew that I could simply call you up and tell you what the trouble is. What's the trouble? This man says we have trouble with our telephones. Allow me to introduce myself. I am Emile Flournoy, communications expert and chief troubleshooter for the Nice telephone company. Oh, please come in, (..)1975 The Return of the Pink Panther