gratuitous/ɡrəˈtuː.ə.t̬əs/形容词(不良行为等)不必要的,无谓的,无理由的A lot of viewers complained that there was too much gratuitous sex and violence in the film.很多观众抱怨说影片中有太多无谓的色情和暴力镜头。想跟读,去练习