名词话筒; 扩音器，麦克风
名词
1. He is talking into a microphone.
他正在对着麦克风讲话。
2. He used a microphone so that everyone could hear him.
他使用扩音器，使人人都能听见他的讲话。
1. 话筒;麦克风
A microphone is a device that is used to make sounds louder or to record them on a tape recorder.
1. 话筒;麦克风
A microphone is a device that is used to make sounds louder or to record them on a tape recorder.
