on the fire

on the fire の類語

in process, operating, in action, in practice, going on, in operation, in the works, operational, under construction, in production, functioning, in progress, in hand, in force, on the way, functional, acting, working, going, ongoing, active, under way, running, brewing, forthcoming

on the fire の言い換えを探すには

on the fire（）の類語・言い換え（パラフレーズ）を、日本語訳つきで関連度順に並べています。英作文の語彙を増やしたいとき、長文読解で本文と選択肢の言い換えを見抜きたいときに使えます。