It enables you to record sound, played back through your sound card, microphone, line in and any other sound sources.

它能让你在录音，播放，通过您的音效卡，麦克风，线，和任何其他声源。

youdao

The commander holding a microphone in hand, announced loudly, to line up and prepare to set out.

指挥员手拿麦克风大声宣布，立即整队出发。

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You can even record from a standard radio by attaching it to the Microphone or Line in jacks on your PC.

你甚至可以记录从一个标准的电台相连，以麦克风或线路在插孔在您的PC上。

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Beyond headphones, there's a line out for connecting it to a sound system, and a line in and microphone jack for adding external sound to the set.

ENGADGET

Murray said that technical difficulties prevented the microphone from picking up sound, the drill steel was blocking the microphone, and a line broke.

CNN: Camera lowered into mine cavity shows 'survivable space'

You hear him (via the microphone he's wearing) shout an audible at the line and listen as his breath swells.

FORBES: Magazine Article