凱撒琳短期班教材推薦Magic 1200 Level 1: The Short Vowel Word Families.短母音相關詞群及特殊發音 Level 2: The Long Vowel Word Families.長母音相關詞群及特殊發音 Level 3: The Vowel Digraphs,Diphthongs,and R-Controlled Vowel Word Familie...