1. The woman could use his metric ruler. ���Ů�ӿ���ʹ�������׳ߡ�
2. Semantic similarity metric is a key technique in information retrieval. ���������Բ������Ϣ�����еĹؼ�������
3. Finally, $ Index is most useful as a point of comparison or a ranking metric, not as a standalone number. �������ָ���������õ���Ϊ���Ƚϻ��������֣���������Ϊһ�������ĺ��롣
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n.
1. a function of a topological space that gives, for any two points in the space, a value equal to the
2. a decimal unit of measurement of the metric system (based on meters and kilograms and seconds)
3. a system of related measures that facilitates the quantification of some particular characteristic adj.
1. based on the meter as a standard of measurement
2. the rhythmic arrangement of syllables
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