【Pinyin】Unit 13-Pronunciational rule 6: Syllable-diving markA-monthly/yearly members, Introductory Course
【Pinyin】Unit 12-Pronunciational rule 5: Tune Sandhi of “不”“一”A-monthly/yearly members, Introductory Course
【Pinyin】Unit 9-Differentiation 4: Aspirated and Unaspirated InitialsA-monthly/yearly members, Introductory Course
【Pinyin】Unit 8-Differentiation 3: alveolar nasal “n” and velar nasal “ng”A-monthly/yearly members, Introductory Course
【Pinyin】Unit 6-Differentiation 1: initials j,q,x and z,c,sA-monthly/yearly members, Introductory Course
【Pinyin】Unit 5-Pronunciational rule 2: Tone Marking and AbbreviationA-monthly/yearly members, Introductory Course
