名词
中文翻译：噪音杀手
同义词：
['noise suppressor', 'noise canceller']
例句：
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1.The noise killer effectively reduced the sound level in the room.
这个噪音杀手有效地降低了房间内的声音水平。
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2. The noise killer is a device that can be plugged into any electrical outlet.
噪音杀手是一种可以插入任何电源插座的设备。
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3. The noise killer was designed to protect people from loud noises.
噪音杀手被设计用来保护人们免受大声噪音的伤害。