1. Is it essential to our survival in the hunter-gatherer sense? �Ƕ�������ȡ-�۴�ʽ�������Ǿ��Ա�Ҫ����
2. Defended system includes management center, firewall, pseudo server and data gatherer. �÷�����ϵ�����������ġ�����ǽ��α�������������ռ����ȡ�
3. In most places, writing started about the same time ancient civilizations emerged from hunter-gatherer communities. ������ط���д�����ڴ����ͬ��ʱ�䣬�Ӵ���-�ɼ�������п�ʼ���֡�
ӢӢ����
n.
1. a person who gathers
2. a person who is employed to collect payments (as for rent or taxes)