heroism
n. 英雄气概，英勇行为
例句
By their tremendous heroism, men such as Shakleton, Scott, and Amundsen caused a new continent to emerge from the shadows, and yet that heroic age, little more than a century old, is already passing.
沙克尔顿、斯科特和阿蒙森等人以他们巨大的英雄主义，使一个新大陆从阴影中浮现，但那个英雄时代，一个多世纪前，已经一去不复返了。
He received a medal for his heroism.
他由于英勇而获得一枚奖章。
《新英汉大辞典》
What is heroism?
什么是英雄主义？
