public speaker

n. 演说家

例句与用法：

She isn't a practised public speaker, but she faced her audience as (if) to the manner born.

她虽无演讲经验，但(似乎)生来并不怯场。

Clarity of diction is vital for a public speaker.

发音清晰对演说家至关重要。

A public speaker needs a voice that carries (well).

演说家要有(很远都能听到的)洪亮嗓音。