speaker

英 [spik(r)] 美 [spikr]

n.发言者;演讲者;说话者;讲(某种语言)的人

复数： speakers

例句：

It gives me great pleasure to introduce our guest speaker.

我很荣幸来介绍我们的特约演讲人。

The speaker was shouted down by a group of protesters.

一群抗议者大叫大嚷，盖过了讲话人的声音。