An amplifier is an electronic device in a radio or stereo system which causes sounds or signals to get louder.
英汉词典释义
n.
扩音器, 放大器,扬声器
The guitar plugs into this amplifier.这把吉他能接到这个扬声器上。All the speakers hook up to a single amplifier.所有喇叭都接在单一的扩音器上。Amplifier is electrical device which make sounds louder.扩音器是一种使声音放大的电气装置。
英英词典释义
Noun
1. electronic equipment that increases strength of signals passing through it