German phrase
Darf ich Ihnen ~ und ~ vorstellen?
Meaning
Could I introduce ___ and ___ to you?
When to use it
It asks your permission. This polite form introduces two people to you.
Example dialogue
Darf ich Ihnen meinen Kollegen Thomas und seine Frau Anna vorstellen?
Could I introduce my colleague Thomas and his wife Anna to you?
Ja, gern. Freut mich, Sie kennenzulernen.
Certainly. Nice to meet you.