[lǚ tāng dǎo huǒ]   

履    汤    蹈    火    身入汤火。比喻处苦难之境。

身入汤火。比喻处苦难之境。

Go into boiling water and walk through fire and water

履霜知冰    履舄往来    履险若夷    履薄临深    履信思顺