1. Objective:To study the relationship between cognitive function impairment and illness duration in schizophrenia. Ŀ�ģ�̽�־������֢��֪�����ij̶��벡�̹�ϵ��
2. But those who have never suffered impairment of sight or hearing seldom make the fullest use of these blessed faculties. ������Щ����û�����ܹ�ʧȥ�Ӿ����������˺��ٻ���������Щ�ɹ��������
3. An impairment in the ability to control movements, characterized by spasmodic or repetitive motions or lack of coordination. '�˶�'��''''��'�ϰ�'��''����''��'�˶�'��''������''��'�ϰ�'��''���Ծ��λ�Ƶ���ظ��Ķ�����ȱ��Э����Ϊ������
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n.
1. the occurrence of a change for the worse
2. a symptom of reduced quality or strength
3. the condition of being unable to perform as a consequence of physical or mental unfitness
4. damage that results in a reduction of strength or quality
5. the act of making something futile and useless (as by routine)