heroics

例句：

1. 1.The heroics of the soldiers during the battle were truly inspiring.
   士兵们在战斗中的英雄行为真是令人鼓舞。
2. 2.He was a true hero, risking his life to save others.
   他是一个真正的英雄，冒着生命危险去救其他人。
3. 3.The heroics of the firefighters in the rescue operation were commendable.
   消防员在救援行动中的英勇表现值得称赞。