名词
中文翻译：消声器
同义词：
['muffler', 'silencer']
例句：
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1.The police officer used a hush pipe to keep the noise down.
警察用消声器来降低噪音。
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2.The car's muffler was damaged in the accident.
汽车的消声器在事故中受损了。
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3.The silencer helps to muffle the sound of the engine.
消声器有助于减弱发动机的声音。