刀山火海 [－－－－]

Jyutping dou1 saan1 fo2 hoi2
Pinyin dāo shān huǒ hǎi

Definitions (CC-CEDICT)
  1. lit. mountains of daggers and seas of flames
  2. fig. extreme danger (idiom)
Definitions (Wiktionary)
  1. phrase, idiomatic
    mountains of daggers and seas of flames; (figurative) extreme danger
Definitions (Kaifangcidian)
  1. （沒有對應漢語詞彙）