练习:practice(名),practise(动),exercise, rehearsal, training, drill英雄:hero(男),heroine(女)无用:useless, of no use, worthless, needless, bootless, futile, ineffective, inutile最少:smallest, least流行的:epidemic, epidemical, modish, popular地理:geography完成:complete, accomplish, carry through, fulfil, fulfill,finish去:go, leave, remove今晚:tonight, this evening