1. Man was evolved from an ancestor that was probably arboreal . �˴���Ǵ�ס�����ϵ����Ƚ��������ġ�
2. Human vision like that of other pr mates has evolved in an arboreal environment. ������Ӿ������鳤Ŀ�����һ�������ڴ��ֻ����н��������ġ�
3. An arboreal Australian marsupial (Phascolarctos cinereus) that has dense grayish fur, large ears, and sharp claws and feeds chiefly on the leaves of eucalyptus trees. �����ܣ�������һ�ְĴ����������д���������ܣ�������Ũ�ܵĻ�ë�������ͼ�����צ�ӣ���Ҫ����������ҶΪʳ��
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adj.
1. of or relating to or formed by trees
2. inhabiting or frequenting trees
3. resembling a tree in form and branching structure