扩音器

He gave a tap at the microphone before speaking.

他在讲话前先轻叩了下音器。

Amplifier is electrical device which make sounds louder.

音器是种声音放大的电气装置。

All the speakers hook up to a single amplifier.

所有喇叭都接在单的音器上。

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

每架飞在着陆, 音器发出通告。

He used a microphone so that everyone could hear him.

"他音器,人人都能听见他的讲话。"

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音器，因为它的确是的。

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

候选人从车顶的窗口探出头来，音器下他的嗓音略微嘈杂。