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Jyutping hung1 hei3 lau4
Pinyin kōng qì liú

Definitions (CC-CEDICT)
  1. flow of air
  2. draft
Examples (粵典–words.hk)
  1. Cantonese
    呢间大房空气流通。
    呢間大房空氣流通。
    ni1 gaan1 daai6 fong2 hung1 hei3 lau4 tung1.
    • The air circulates well in this spacious room.
Examples (Wiktionary)
  1. Mandarin
    空气流通
    空氣流通
    kōng qì liú tōng
    • air circulation; ventilation