基本解释n.合演者；合演明星v.合演同根派生 英汉例句用作名词 (n.)The actor's performance eclipsed that of his costar.那位演员的表现盖过了与他合演者。用作动词 (v.)Michelle Yeoh and Russell Wong costar in the film.杨紫琼和王盛德也参与演出。