If there's a microphone in front of you, adjust it to the right height, rather than forcing yourself to stoop during the speech.

如果你面前有一个麦克风，把它调到合适的高度，而不是强迫自己在演讲时弯腰。

youdao

The microphone was cunningly concealed in the bookcase.

话筒被巧妙地隐藏在书柜里。

《牛津词典》

For me, a performance is in front of a microphone, over the radio, to an unseen audience.

对我来说,表演就是在麦克风前，通过无线电，传播给看不见的听众。

《柯林斯英汉双解大词典》

Something that might make the next iPod even more useful would be the addition of a built-in microphone sound-in port for an external microphone to record sound.

FORBES: Magazine Article

The Smart Touch Remote Control also has a built-in microphone for Smart Interaction commands when the viewer is too far from the TV's built-in microphone.

ENGADGET: Samsung details pricing and availability for its 2012 Smart TV lineup

The JBL Flip includes a built-in microphone for hands-free Bluetooth calls and a 5-hour rechargeable battery.

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