protagonist

1. N-COUNT Someone who is a protagonist of an idea or movement is a supporter of it. 倡導者; 擁護者[正式]

...the main protagonists of their countries' integration into the world market. …將他們的國家融入世界市場的主要倡導者。

2. N-COUNT A protagonist in a play, novel, or real event is one of the main people in it. (戯劇、小說或真實事件裡的) 主人公[正式]

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

…J·D·塞林格的小說《麥田裡的守望者》的主人公。