送话口的英文

mouthpiece

• 送:    deliver; carry
• 话:    word; talk
• 口:    mouth

例句与用法

1. When edison spoke into the mouthpiece , the sound vibrations of his voice would be indented onto the cylinder by the recording needle
   当爱迪生对著送话口说话时，唱针会将他的声音震动刻划在滚筒上，使其形成波纹。