复仇者

例句：

1. 1. The Avengers are a team of superheroes who fight against evil.
   美国队长是一个超级英雄，他和他的队友们一起对抗邪恶。
2. 2. He was a hero in his own right, and he saved many people from danger.
   他自己就是一个英雄，他救了很多人免受危险。
3. 3. The Guardians of the Galaxy are a group of aliens who protect Earth from threats.
   银河护卫队是一个外星人组成的团体，他们保护地球免受威胁。