扩音器

Amplifier is electrical device which make sounds louder.

扩音器是种使声音放大电气装置。

SASHED candidates standing on car roofs, their voices crackling through loudspeakers.

候选人从车顶探出头来，扩音器他嗓音略微嘈杂。

The loudspeaker announced each airplane as it landed at the airport.

每架飞机在机场着陆, 扩音器就发出告。

The Mega-Sonic Scatter-Cat Repeller looks like a megaphone because it actually is one.

这个超音波驱猫器看上去像个扩音器，因为它确是。

He gave a tap at the microphone before speaking.

他在讲话前先轻叩扩音器。

He used a microphone so that everyone could hear him.

"他使用扩音器,使人人都能听见他讲话。"

All the speakers hook up to a single amplifier.

所有喇叭都接在单扩音器上。