Tā shì wǒmen jiànmiàn de jièshàorén, méiyǒu tā jiù méiyǒu zhè duàn yīnyuán.
He was the one who introduced us - without him there would be no this relationship.
Tips
usage
介绍人 covers a range of roles: matchmaker for romantic introductions, a professional referee who vouches for someone, or simply a person who introduces others in a social context. The more specific term for matchmaker is 媒人.
