1. Unfortunately, because studies on brand-extension strategy are still in exploration, I am a fumbler in many ideas in the paper, then so many oversights and mistakes are unavoidable. ���ĵ�Ŀ����������ҹ���ҵ��Ʒ�ƹ�����������������Ӵ�ͳƷ�ƹ������߳�����Ӧ֪ʶ��������չ����Ҫ���ƶ��ҹ�Ʒ�ƹ�������߾���������
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n.
1. someone who makes mistakes because of incompetence