protagonist [proˈtæɡənɪst]

例句:

• The protagonist is Snowman, a post-apocalyptic hermit character.
  来自SA
• a leading protagonist of the conservation movement
  资源保护运动的急先锋
  
• She was herself a vehement protagonist of sexual equality.
  她本人就热心提倡男女平等.
  
• At the end of the story, the protagonist emerges as a powerful pugilist.
  在故事的结尾，主角变成了一个强有力的拳击家。
  
• Come IOU, sparks have flown and our protagonist appears smitten.
  来自BBC
• The protagonist was a married man in love with his wife.
  来自NEWYORKER