《汉语拼音》

Lesson 1a o eThe simple finals a o e Lesson 2i u üThe simple finals i u ü Lesson 3b pInitials b p Lesson 4m fInitials m f Lesson 5ai ei uiThe double finals ai ei ui Lesson 6ao ou iuThe double finals ao ou iu Lesson 7d tInitials d t Lesson 8n lInitials n l Lesson 9g k hInitials g k h Lesson 10j q xInitials j q x Lesson 11z c sInitials z c s Lesson 12zh ch sh rInitials zh ch sh r Lesson 13y wy and w Lesson 14h-u-a → huaThree sounds in one syllable Lesson 15ie üe erThe double finals ie üe er Lesson 16an en inFinals with n: an en in Lesson 17un ünFinals with n: un ün Lesson 18ang eng ing ongFinals with ng: ang eng ing ong