listening-in device

Blogging is a communication tool, a marketing technique, a listening device, and a way to interact directly with customers one-to-one on a global scale.

博客是交流工具，市场手段，倾听渠道和在世界范围内和顾客一对一直接互动的方法。

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A concealed microphone or listening device or other audio surveillance device.

一种隐藏的麦克风、收听设备或其他音频监视设备.

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Now you can eavesdrop from a safe distance with the Orbitor Electronic Listening Device.

现在你可以用这个电子装置在一个安全的距离。

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Outdoorsmen and bird watchers can tap into Mother Nature's secrets like never before and be thrilled at the sound quality of this ingenious listening device.

外面的人和鸟类观察者从未像现在这样领略到大自然的秘密，并对此巧妙的器音质激动不已。

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YOUNG man gazes intently at his mobile device, to which he is listening through earphones.

戴着耳塞,一位年轻人正聚精会神地盯着他的手机.

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