1. （书、戏剧、电影或故事中品行端正的）男主角，男主人公
    The hero of a book, play, film, or story is the main male character, who usually has good qualities.

    e.g. The hero of Doctor Zhivago dies in 1929.
           《日瓦戈医生》的男主角于1929年去世。
    e.g. ...the author's decision to make his hero a photographer.
           作者将男主角设计成一名摄影师的决定

2. （尤指男性）英雄，英雄人物，豪杰，勇士
    A hero is someone, especially a man, who has done something brave, new, or good, and who is therefore greatly admired by a lot of people.

    e.g. He called Mr Mandela a hero who had inspired millions.
           他称曼德拉先生为鼓舞了数百万民众的英雄。
    e.g. ...the goalscoring hero of the British hockey team...
           英国曲棍球队的得分英雄

3. 偶像;崇拜对象;心目中的英雄
    If you describe someone as your hero, you mean that you admire them a great deal, usually because of a particular quality or skill that they have.

hero的意思

    e.g. My boyhood hero was Bobby Charlton...
           我童年时代的偶像是博比·查尔顿。
    e.g. No matter, he remained the hero of the crowds.
           不要紧，他仍是众人心目中的英雄。