我们在山谷里大喊，不一会儿，回声就清晰地从山坡上传来。

We shouted in the valley, and in an instant, the echo came from the hillside with great distinctness.

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我们在山谷中高呼，回声霎时间就从山腰上清晰地返回。

We shouted in the valley, and in an instant the echo came from the hillside with great distinctness.

《新英汉大辞典》

该系统采用了减噪和降低回声的技术，因此通话质量十分清晰。 当有电话打进时，将自动暂停正在播放的歌曲。

Thanks to noise-cancelling and echo-reducing technology, call quality is sharp and clear, and it will automatically pause whatever music you’re listening to when a call comes in .

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