打蛇打七寸 [－－－－－]

Jyutping daa2 se4 daa2 cat1 cyun3
Pinyin dǎ shé dǎ qī cùn

Definitions (粵典–words.hk)
  1. x
Definitions (Wiktionary)
  1. proverb
    Attack the problem at its core; Hit where it hurts