[------]

Jyutping aa3 kaa3 lau4 si1 zi1 zung2
Pinyin ā kà liú sī zhī zhǒng

Definitions (Wiktionary)
  1. phrase, idiomatic
    Achilles heel (weakness of a strong individual, situation, etc.)
    (syn.) 阿基里斯腱

[------]

Jyutping aa3 kaa3 lau4 si1 zi1 zung2
Pinyin ā kā liú sī zhī zhǒng

Definitions (Wiktionary)
  1. phrase, idiomatic
    Achilles heel (weakness of a strong individual, situation, etc.)
    (syn.) 阿基里斯腱