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单词 supersound
释义

Definition of supersound in English:

supersound

noun
  • Sound of too high a frequency to be perceived by humans; = "ultrasound".

Origin

1920s; earliest use found in Robert Millikan (1868–1953).

Definition of supersound in US English:

supersound

noun
  • Sound of too high a frequency to be perceived by humans; = "ultrasound".

Origin

1920s; earliest use found in Robert Millikan (1868–1953).

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