During the epidemic, medical staff led from the front — truly admirable.
Tips
history
From Sima Qian's 《史记·淮南衡山列传》 (Han dynasty): 当敌勇敢,常为士卒先 — 'facing the enemy bravely, always out in front of the soldiers.' The four-character form is crystallized in 《资治通鉴·隋纪》 of Yang Xuangan: 玄感每战,身先士卒.
usage
Now commonly applied to any leader — boss, team captain, cadre — who does the hard work themselves rather than just directing. The military flavor is still present and gives the idiom a forceful, admiring tone.