名词
中文翻译：回声杀手同义词
同义词：
['echo suppressor', 'echo canceller']
例句：
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1. The echo killer is a device that can be attached to a speaker to reduce the echo of its sound.
回声杀手是一种可以安装在扬声器上的设备，用于减少声音的回响。
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2. The echo killer is used in recording studios to eliminate unwanted echoes from the microphone.
回声杀手在录音室中被用来消除麦克风产生的不想要的回响。
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3. The echo killer has become increasingly popular as technology advances and people demand betteraudio quality.
随着科技的进步和人们对更好音频质量的需求增加，回声杀手变得越来越受欢迎。