melt down

reduce or cause to be reduced from a solid to a liquid state, usually by heating; "melt butter"; "melt down gold"; "The wax melted in the sun"

मैं यह सब वापस बाढ़ आया अपनी गर्दन, गलाना पल.

water, and soon your fuel will melt down and release the radioactive fission products within