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  1. Oxford Dictionary

    noise-cancelling

    • adj.
      (especially of a pair of headphones) designed to reduce external noise, typically by generating a sound wave that cancels it out
    • 釋義

    形容詞

    • 1. (especially of a pair of headphones) designed to reduce external noise, typically by generating a sound wave that cancels it out I popped on my noise-cancelling headphones and drifted off to sleep