相关Therearethreelevelso的文学知识

问题详情：TherearethreelevelsofEnglishpronunciation： Level1：Peopleoftendon’tunderstandwhatyouwanttosay，becauseyouusethewrongsounds．Level2：Peopleunderstandwhatyouwanttosay，butitisunpleasanttolistento.Level3：P...