n.（男士无尾半正式）晚礼服
John looked fit to kill in his tuxedo. 约翰穿上晚礼服，显得十分英俊。
At a formal occasion, it is necessary for men to wear a tuxedo. 在一个正式的场合中,男仕们穿着无尾晚礼服是必要的。
