Emma remained calm, held out her hand, made quiet sounds, and then quickly got it.

艾玛保持冷静，伸出她的手，动静很小，然后迅速拿到了它。

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Fuel cells, which are quiet and clean, can run continuously, so companies can recover their investment more quickly.

燃料电池即安静又清洁，又可连续运行，所以企业很快可以收回成本。

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A new mother, for example, quickly learns to try to sleep when her baby is quiet, even in the middle of the day.

例如，一个新生儿妈妈很快学会在孩子安静下来时尽量睡觉，即使是在大中午。

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The song begins with a quiet, haunting girl singing and quickly ramps up into a percussion heavy sound which is at turns unique and utterly perfect as a companion to the game.

FORBES: Atmospherics and Surprising Hits: 'Dishonored' Original Game Soundtrack Review

Revis quickly established a reputation on the field as a shutdown cornerback, routinely holding wide receivers to quiet games and causing quarterbacks to shy away from his side of the field.

NPR: AP Source: Jets Allow Revis To Meet With Bucs

Terrorists often quickly claim credit for their attacks, but in many ways it is more diabolical for them to stay quiet, stoking public uncertainty and dissipating resources.

WSJ: William Bratton: A Cop's-Eye View of Terrorism