Their noise modulated to a concerted menacing growl punctuated by sharp yaps.

它们的喧闹声逐渐变为整齐划一的、带有威胁性的吼叫，还夹杂着刺耳的狂吠。

《柯林斯英汉双解大词典》

But through all the noise came a sharp warning cry.

但在一片嘈杂声中，响起了一声尖锐的警告叫声。

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Coughs typically last around one-quarter of a second, comprising a sharp intake of breath, a silent exhalation and then the complex burst of sounds that makes the cough noise.

典型的咳嗽会持续约四分之一秒，包括刺耳的吸气，安静的呼气，然后是形成咳嗽噪声的复杂爆裂声。

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The sharp noise came through the thick stone walls of the house.

VOA: special.2010.03.20

Shooting at high ISO sensitivity enables users to shoot at faster shutter speeds and reduce the effects of image blur caused by camera shake even in low-light situations or when shooting a moving subject, delivering clean and sharp images with minimal noise.

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Additionally, Pioneer's PureCinema technology upconverts standard definition video sources to 1080p for optimum image processing and delivering clear, sharp images with reduced image noise.

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Capture images with radiant colors, low noise and razor-sharp edges, thanks in part to the 16-megapixel CCD sensor.

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