age ��ָ����������������ij�ܳ�������������ʷʱ����ʱ�ڡ� epoch ��ʽ�ôʣ�����ָ��ij�ش��¼����仯Ϊ�����µ���ʷʱ�ڡ� era �������ôʣ�ָ��ʷ�ϵļ�Ԫ�����������epoch��age����������ʱ�ڵ������Ժ��������̡� period ����ͨ�ôʣ�����㷺��ʱ�䳤�̲��ޣ��ȿ�ָ�κ�һ����ʷʱ�ڣ��ֿ�ָ���˻���Ȼ���һ����չ�Ρ� times ����ijһ�ض�ʱ�ڡ�
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1. The teaching method marked a new epoch in education. ���ֽ�ѧ���������˽������¼�Ԫ��
2. The years he spent at Oxford University were an epoch in his life. ����ţ���ѧ�ȹ�����Щ������һ�������ش��ʱ�ڡ�
3. I also make it by understanding the purpose of any other man, of whatever epoch. �������κα���ˣ��κα��ʱ������ͼʱ����Ҳ�����������ձ��ԡ�
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n.
1. a period marked by distinctive character or reckoned from a fixed point or event
2. (astronomy) the precise date that is the point of reference for which information (as coordinates of
3. a unit of geological time