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Jyutping tai4 sam1 diu3 daam2
Pinyin tí xīn diào dǎn

Definitions (CC-CEDICT)
  1. (saying) to be very scared and on edge
Definitions (粵典–words.hk)
  1. 語句
    又​擔心​又​驚​,​心情​平靜​唔​到
    to be on tenterhooks; to be on one's guard; literally: to lift a heart and hang a gall bladder
    • 我住嗰區治安唔係好好,成日要提心吊膽。
      我住𠮶区治安唔系好好,成日要提心吊胆。
      ngo5 zyu6 go2 keoi1 zi6 on1 m4 hai6 hou2 hou2, seng4 jat6 jiu3 tai4 sam1 diu3 daam2.
      The district I live in is not very safe, I always need to keep my guard up.
  2. 近義詞
    擔驚受怕
Definitions (Wiktionary)
  1. phrase, idiomatic
    to be on tenterhooks; to be scared or jittery; to be in constant fear
Definitions (HSK3.0)
  1. HSK3 七一九级词汇表 #4056
Examples (粵典–words.hk)
  1. Cantonese
    我住𠮶区治安唔系好好,成日要提心吊胆。
    我住嗰區治安唔係好好,成日要提心吊膽。
    ngo5 zyu6 go2 keoi1 zi6 on1 m4 hai6 hou2 hou2, seng4 jat6 jiu3 tai4 sam1 diu3 daam2.
    • The district I live in is not very safe, I always need to keep my guard up.