扩音机 (kuò yīn jī) — audio amplifier, public-address amplifier

Definition

Examples

• 机房里有一台扩音机。
  Jī fáng lǐ yǒu yì tái kuò yīn jī.
  There is an audio amplifier in the equipment room.
• 用这个扩音机可以放音乐。
  Yòng zhè ge kuò yīn jī kě yǐ fàng yīn yuè.
  You can play music through this amplifier.
• 老师通过扩音机讲话。
  Lǎo shī tōng guò kuò yīn jī jiǎng huà.
  The teacher speaks through the amplifier.