y  �ں���ƴ������һ���Ƚ�����ķ��ţ������ܶ����������ڡ�����ʱ����i ,��ʱ��������һ������ijЩ�Գ����ڵ�ƴ������г��֡�
��Ԫ��i �ͨ�����ֻ��һ��ƴ����ĸ�������Գ�����ʱ��ǰ�涼Ҫ����y ���[yi],[yu] (�����������Ҫȥ��)[ia]��[ie]��[ian]�ȸ���ĸ�Գ�����ʱӦд��y����[ya],[ye],[yan]
  ��[iu]��һ������ĸ���ĸ�������Գ�����ʱд��[you]��
    y�ڴ�����ʱ����y ����i ʱ��ͬ���ڨ���ǰ�����y ��ͬʱȥ�����㣬�����ǽ�������y��
    y is special sign in Chinese Pin-Yin, it can't form syllable alone. It sometimes expresses I and ��. In general, it always appears in some Pin-Yin joinder form of standing as a syllable alone.
    Exalple: The vowel�� and I are all only one Pin-Yin characted. When standing as a syllable as a syllable alone, they should be added y before them.  Their forms are [yi],[yu] (erase two dot upon ��).
    When [ia], [ie],[ian] etc. Compound finals forms syllable alone, I should be written y ,so their forms are [ya], [ye], [yan].
    [iu] is a special compound final, when it forms syllables alone, is written as [you].
    When y express ��, different from y express I, should add y before ��, meantime erase two dot rather than replace y.

w��y һ��Ҳ��������ţ����ܶ����������ڡ���ֻ����u��Ҳֻ��ijЩ�Գ����ڵ�ƴ������г��֡�Ԫ��u �ں�����ֻ����Ϊһ��ƴ����ĸ�������������ʱ��ǰ��Ҫ��w�����[wu]��[ua]��[uai]��[uo]�ȸ���ĸ�Գ�����ʱ��uҪ���w д��[wa],[wai],[wo]��
    Same as y, w also special sign, can't form syllable alone. It only expresses u, and appears in some Pin-Yin joinder of standing as a alones. The vowel u can only become one Pin-Yin character in Chinese, when it forms syllable alone should add w before it, becomes [wu]. When [ua],[uai],[uo] etc. Compound vowles form syllable alone, chang u to w, are writted as [wa],[wai],[wo].

y

w