逞英雄

chěngyīngxióng

逞英雄 — chěngyīngxióng

1. to show off bravery; to try to be a hero (often recklessly)

   他总爱逞英雄，结果反而害了大家。 tā zǒng ài chěngyīngxióng jiéguǒ fǎnér hài le dàjiā — He always tries to show off and be a hero, and in the end he only brings trouble to everyone.