见义勇为
jiàn​yì​yǒng​wéi HSK7

to act heroically for a just cause

Senses

见义勇为/ 見義勇為 jiàn​yì​yǒng​wéi to act heroically for a just cause

(idiom) to do boldly what is righteous; to step in and help when encountering a critical situation; from the Analects 论语 lún​yǔ

References

see 见义勇为/見義勇為 → 论语/論語
antonym 趁火打劫/趁火打劫 → 见义勇为/見義勇為
antonym 隔岸观火/隔岸觀火 → 见义勇为/見義勇為
antonym 冷眼旁观/冷眼旁觀 → 见义勇为/見義勇為
see 义行/義行 → 见义勇为/見義勇為