-gointoboilingwaterandwalk[step]onfire--toundertakeamatterfearlesslyandvigorouslyintheinterestofacauseoronbehalfofafriend;defyalldifficultiesanddanger;leapintoaboilingcauldronorablazingfire;go[get]throughfireandflood[water];takeallrisks;jumpintohotwaterorwalkthroughfire;bravefireandflood;defydangeranddeath;charge[go]throughfireandwater;(bereadyto)plungeintoaragingfireandboilingwater;gothroughasevereordealorsorrowfulexperience;gothroughthebaptismoffire;gothroughthickandthin:
Hefacedtheenemyvaliantly,shunednodifficultiesanddangersandwouldnothesitatetolaydownhislifeifneedbe.他英勇对敌，不避艰险，赴汤蹈火在所不计。