赴湯蹈火（赴湯蹈火）　

◎ 赴湯蹈火 fùtāng-dǎohuǒ

[go through fire and water;be ready to risk one‘s own life;jump into the water and walk through fire] 形容不畏艱難險阻,奮不顧身

楚 越之俗好勇,則有赴湯蹈火之歌。—— 北齊· 劉晝《新論》