Lesson 9����ai ei ui ������

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Essentials of Pronunciation

  [ai],[ei],[ui]���Ǹ���ĸ��ǰһ��Ԫ�����ڶȴ󣬷���������������һ��Ԫ�����ڶ�С�������̶��ᣬ�Ƚ�ģ������ǰһ��Ԫ������һ��Ԫ������Ȼ���У�������Ծ��
��[ai],[ei],[ui] are all compound finals. In each of them, the former vowel is more open, longer and louder while the latter one is narrow, short, weak and blurred. It is imperative to havea natural glide but not a sudden change from the former to the  latter.