[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

履穿踵决    履仁蹈义    履信思顺    履险如夷    履霜知冰