crusaderKK [kruˋsedɚ] /kɹuˈseɪdɚ/名詞1鬥士、倡導者、改革者She became a tireless crusader for children's rights in rural areas.她成為不遺餘力為偏鄉兒童權益奮鬥的鬥士。2十字軍戰士The museum displays armor worn by crusaders in the Middle Ages.博物館展示中世紀十字軍戰士所穿的盔甲。