unwanted sounds 中文意思是什麼
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Noise is unwanted sounds. when the noise is too big, it becomes a kind of pollution. noise is irritant, and it can cause pressure, or even sudden or permanent deafness
噪音是不想要的聲音。特別是噪音太大時，便會變成污染的一種。噪音是刺激性的，能引致精神壓力，甚至導致暫時或永久失聰。
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