command ����ʽ�ôʣ�ǿ��Ȩ���ԡ�ȫ���Ժ�ǿ���ԡ� order ��ͨ�ôʣ�����ָ�������� direction ��ʽ�ôʣ�ָ��ͷ�������ָʾ��������ݲ�һ���꾡�������ϻ��ͣ���̫ǿ��ǿ���ԡ�Ҳ��ָָ���Ե�˵���� instruction �����ôʣ�ָ����Υ���������Ʒ������Ҳ��ָ��������˵����ָʾ��
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1. An instruction to go to a subroutine. һ��ת�Ƶ��ӳ���ȥ��ָ�
2. To follow the process of work instruction. ������ҵָ����ij�������
3. Reed College at that time offered perhaps the best calligraphy instruction in the country. �Ǹ�ʱ����´�ѧ�ṩ��Ҳ����ȫ������õ��鷨ָ����
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n.
1. a message describing how something is to be done
2. the activities of educating or instructing; activities that impart knowledge or skill
3. the profession of a teacher
4. (computer science) a line of code written as part of a computer program