名词
中文翻译：扩散的不活跃回声
同义词：
['扩散声波，扩散声波例句：1. The sound of the waves was diffused in the distance.（海浪的声音在远处扩散开来。）']
例句：
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1. The sound of the waves was diffused in the distance.
海浪的声音在远处扩散开来。
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2. The radio waves were diffused throughout the city.
无线电波在整个城市中传播开来。
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3.The diffusion of information is a complex process.
信息的传播是一个复杂的过程。