急如星火

jírúxīnghuǒ
  1. lit. as hurried as a shooting star (idiom); requiring immediate action
  2. extremely urgent

CEDICT

如流星的光那樣急速，形容情勢十分緊急。

重編國語辭典

Entry Composition

1 急 jí
  1. urgent
  2. pressing
  3. rapid
  4. hurried
  5. worried
  6. to make (sb) anxious
2 如 rú
  1. as
  2. as if
  3. such as
3 星火 xīnghuǒ
  1. spark
  2. meteor trail (mostly used in expressions like 急如星火 jírúxīnghuǒ)

Related entries

火急 huǒjí extremely urgent