risk one’s life on; face death with equanimity;give no thought to one’s safety ❍ 一位白须白发的大员，这时觉得天下兴亡，系在他的嘴上了，便把心一横，～，坚决的抗议道： ……(鲁迅 《故事新编》42) An official with a white beard and hair,convinced that the fate of the empire hung from his lips,screwed up his courage to risk his life on a firm protest.