B2 a piece of equipment that you speak into to make your voice louder, or to record your voice or other sounds扩音器,麦克风,话筒
More examples
Can you show me where the microphone plugs into the tape recorder?
The microphone converts acoustic waves to electrical signals for transmission.
They thrust a microphone in front of me and fired questions at me.
The photographer tripped over a lead, wrenching a microphone from its stand.
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