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Jyutping jam1 bo1
Pinyin yīn bō

Definitions (CC-CEDICT)
  1. sound wave
Definitions (Wiktionary)
  1. noun
    sound wave
    (syn.) 声浪, 声波, 聲波, 聲浪
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)