The technician will amplify the speaker's microphone so everyone in the conference hall can hear.

技術人員會把講者的麥克風音量放大，讓會議廳裡的每個人都聽得到。

Our new headsets amplify callers' voices, helping customer service agents understand complaints clearly.

我們的新耳機能放大來電者的聲音，幫助客服人員清楚理解客訴內容。

The tour guide used a small device to amplify her voice on the crowded bus.

導遊在擁擠的遊覽車上用一台小型裝置放大她的聲音。