我想介绍一下雷切尔·艾略特，她是我们今晚的演讲者。

I'd like to ___introduce Rachel Elliott who is our speaker this evening.

主持人将在会议上介绍主旨演讲人。

The host will ___introduce the keynote speaker at the conference.

音乐会开始前，指挥向观众介绍了独奏者。

Before the concert, the conductor ___introduced the soloist to the audience.