protagonist

1. N-COUNT Someone who is a protagonist of an idea or movement is a supporter of it. 倡导者; 拥护者[正式]

...the main protagonists of their countries' integration into the world market. …将他们的国家融入世界市场的主要倡导者。

2. N-COUNT A protagonist in a play, novel, or real event is one of the main people in it. (戏剧、小说或真实事件里的) 主人公[正式]

...the protagonist of J. D. Salinger's novel "The Catcher in the Rye."

…J·D·塞林格的小说《麦田里的守望者》的主人公。