1. It is a recessive hereditary disease of autosome to be deaf and dumb. It was analysed through heredity that reducing or preventing consanguineous marriage can reduce the deaf-mute's birth rate. �����dz�Ⱦɫ�������Ŵ�����ͨ���Ŵ��������֣����ٻ��ֹ�������Խ��������˵ij�����
2. On one hand , sign language recognizer can be used as a translator between healthy person and deaf-mute, which provides better service for deaf mute; һ���棬����ʶ�������Ϊ��ȫ����������֮��ķ��룬Ϊ�������ṩ���õķ���
3. Then was brought unto him one possessed with a devil, blind, and dumb: and he healed him, insomuch that the blind and dumb both spake and saw. �������˽�һ��������������Ϲ���Ƶ��ˡ�����Ү�����Ү�վ�ҽ�������������ư�����˵�������ܿ�����
4. Then was brought unto him one possessed with a devil, blind, and dumb: and he healed him, insomuch that the blind and dumb both spake and saw. �������˽�һ��������������Ϲ���Ƶ��ˡ�����Ү�����Ү�վ�ҽ�������������ư�����˵�������ܿ�����
5. Helen Keller (1880-1968), American deaf-and-dumb woman author and educator. ���ס����գ�1880-1968������������Ů���Һͽ����ҡ�