ModernEnglishvocabularydevelopsthroughthefollowingchannelsEXCEPT______.
Generally,adictionarycoversthefollowingcontentsEXCEPT______.
In“SongofMyself”,Whitmanwritesthat________.
翻译：Itisnousetellinggrown-upchildrennottomakemistakes,bothbecausetheywillnotbelieveyou,andbecausemistakesareanessentialpartofeducation.