crusaderKK [kruˋsedɚ] /kɹuˈseɪdɚ/发音名词1斗士、倡导者、改革者She became a tireless crusader for children's rights in rural areas.她成为不遗余力为偏乡儿童权益奋斗的斗士。2十字军战士The museum displays armor worn by crusaders in the Middle Ages.博物馆展示中世纪十字军战士所穿的盔甲。用这个字练口说→