介绍 (jièshào) means to introduce a person, place, topic, or product — presenting it to someone for the first time. Unlike 引进 (yǐnjìn) and 引入 (yǐnrù), which mean 'to bring in from outside' (e.g., technology, talent) and imply adoption or import, 介绍 is purely about making something known or connecting people.