見義勇為

见义勇为
jiànyìyǒngwéi
(idiom, from the Analects) (usu. of a passer-by who comes across a critical situation) to step in and help; to take brave or selfless action

CEDICT

Entry Composition

1 見 jiàn
  1. to see
  2. to meet
  3. to appear (to be sth)
  4. to interview
  5. opinion
  6. view
2 義勇 yìyǒng courageous in fighting for a just cause
3 為 wéi
  1. as (in the capacity of)
  2. to take sth as
  3. to act as
  4. to serve as
  5. to behave as
  6. to become
  7. to be
  8. to do
  9. by (in the passive voice)