microphone

/ˈmaɪkrəˌfoʊn/

device for converting sound waves into electrical energy

中文释义：麦克风；话筒

The speaker adjusted the microphone to ensure his voice was heard clearly.

演讲者调整了麦克风，以确保他的声音被清晰听到。

Wireless microphones are widely used in concerts and public speaking events.

无线麦克风广泛用于音乐会和公共演讲活动。