名词
中文翻译：传播
同义词：
['transmission', 'propagation of signals']
例句：
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1. The scientistsare studying the propagation of sound waves through the air.
科学家们正在研究声音波通过空气的传播。
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2. The propagation of information has become a major concern in today's digital age.
信息的传播已成为当今数字时代的主要关注点。
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3.The propagation of disease is a significant challenge for public health.
疾病的传播是公共卫生的一个重大挑战。