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Jyutping jat1 sou3 ji4 hung1
Pinyin yī sǎo ér kōng

Definitions (CC-CEDICT)
  1. to sweep clean
  2. to clean out
Definitions (粵典–words.hk)
  1. 語句
    全部​去除
    to make a clean sweep; to eliminate completely; to get rid of all
    • 同你吹完兩粒鐘水,煩惱一掃而空。
      同你吹完两粒钟水,烦恼一扫而空。
      tung4 nei5 ceoi1 jyun4 loeng5 nap1 zung1 seoi2, faan4 nou5 jat1 sou3 ji4 hung1.
      After two hours of talking with you, all my trouble was swept away.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to sweep clean; to be swept clean away
Definitions (Kaifangcidian)
  1. (沒有對應漢語詞彙)
Examples (粵典–words.hk)
  1. Cantonese
    同你吹完两粒钟水,烦恼一扫而空。
    同你吹完兩粒鐘水,煩惱一掃而空。
    tung4 nei5 ceoi1 jyun4 loeng5 nap1 zung1 seoi2, faan4 nou5 jat1 sou3 ji4 hung1.
    • After two hours of talking with you, all my trouble was swept away.