急ㄐㄧˊjí如ㄖㄨˊrú星ㄒㄧㄥxīng火ㄏㄨㄛˇhuǒ

如流星的光那樣急速，形容情勢十分緊急。《二刻拍案驚奇·卷三七》：「朝廷急調遼兵南討，飛檄到來，急如星火。」

英lit. as hurried as a shooting star (idiom); requiring immediate action, extremely urgent