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Jyutping aai1 sing1 taan3 hei3
Pinyin āi shēng tàn qì

Definitions (粵典–words.hk)
  1. 語句
    不斷​發出​「​唉​」​「​哎​」​等表達​哀傷​、​惋惜​或煩​惱​嘅​聲​音​。
    sigh in despair repeatedly
    • 佢個人好悲觀,成日都唉聲嘆氣。
      佢个人好悲观,成日都唉声叹气。
      She's very pessimistic and is sighing all the time.

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Jyutping aai1 seng1 taan3 hei3
Pinyin āi shēng tàn qì

Definitions (CC-CEDICT)
  1. sighing voice, wailing breath (idiom)
  2. to heave deep sighs
  3. to sigh in despair
Definitions (粵典–words.hk)
  1. 語句
    不斷​發出​「​唉​」​「​哎​」​等表達​哀傷​、​惋惜​或煩​惱​嘅​聲​音​。
    sigh in despair repeatedly
    • 佢個人好悲觀,成日都唉聲嘆氣。
      佢个人好悲观,成日都唉声叹气。
      She's very pessimistic and is sighing all the time.
Definitions (Wiktionary)
  1. phrase, idiomatic
    to sigh in disappointment or alas; to heave a sigh
Examples (粵典–words.hk)
  1. Cantonese
    佢个人好悲观,成日都唉声叹气。
    佢個人好悲觀,成日都唉聲嘆氣。
    • She's very pessimistic and is sighing all the time.