amplifier [ˈæmpləˌfaɪɚ]

例句:

• a 25 watt amplifier
  一台25瓦扩音器
  
• The amplifier exploded in a fountain of sparks.
  放大器爆炸，喷射出火星。
  
• All the speakers hook up to a single amplifier.
  所有喇叭都接在单一的扩音器上.
  
• Bad amplifier, filter, radio, loss of GPS timing.
  来自ENGADGET
• The two guitars are plugged into one small amplifier producing a heavily distorted sound.
  来自BBC
• It was enough for the canal to act as an amplifier for every sound in his body.
  来自SA