1. 刀山火海 (dāoshān-huǒhǎi)

   1. 比喻極困難和極危險的地方,也說“火海刀山” seas of fire and a forest of knifes-an extremely dangerous place which is most difficult to get through

刀山火海是成語。

刀山火海 (dāo shān huǒ hǎi)

1. 比喻非常危險和困難的地方。