1. Restores the original creation and modification dates. �ָ�ԭ���Ĵ����������ڡ�
2. Behavior modification could be an alternative, he says. ��Ϊ�ı���һ�ֿ��ܵ�ѡ����˵��
3. Two months into a design project, the customer requested a modification to the product. ��һ�������Ŀ��ʼ�����ºͻ�Ҫ��Բ�Ʒ���ġ�
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n.
1. the act of making something different (as e.g. the size of a garment)
2. slightly modified copy; not an exact copy
3. the grammatical relation that exists when a word qualifies the meaning of the phrase
4. an event that occurs when something passes from one state or phase to another
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modification ����;
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modification coefficient ��λϵ��;
chemical modification ��ѧ����;
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