noise在什么情况下为可数名词

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noise在什么情况下为可数名词
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noise在什么情况下为可数名词
noise在什么情况下为可数名词

noise在什么情况下为可数名词
泛指噪声时,是不可数名词,如The is too much noise outside./ Don't make noise./ Noise is harful to one's health.
指某一种或者某一次声响或者声音时,是可数名词,如:I was watching TV at home when suddenly I heard a strange noise at the door.

当noise 泛指声音、声响时,为可数名词。