缓急相济

緩急相濟
huǎnjíxiāngjì
  1. to help one another in difficulty
  2. mutual assistance in extremity

CEDICT

在紧急的时候，互相帮助。

重編國語辭典

Entry Composition

1 缓急 huǎnjí
  1. priority
  2. whether sth is urgent
2 相济 xiāngjì
  1. (literary) to help, promote or complement each other
  2. to help, promote or complement each other