1. 形容詞
   無聲的, 寂靜的
   無噪音的
   

   同義字詞
   hushed,muted,quiet,quieted,silent,soundless,still,stilly
   

例句

1. Hence, the system is noiseless .
2. My Chroma's virtually noiseless .
3. The definitions assume a noiseless channel.
4. Irinyi thus invented the " noiseless match".
5. The floor should be firm, level and noiseless .
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