1. The stairs spiraled round the central pillar . ¥�������������������������
2. The young people will be the pillar of society. ��������˽���������Ķ�����
3. The enterprise group is backbone and pillar of our national economy. ��ҵ�������ҹ����õĹǸ���֧����
ӢӢ����
n.
1. a fundamental principle or practice
2. anything tall and relatively thin that approximates the shape of a column or tower
3. a prominent supporter
4. a vertical cylindrical structure standing alone and not supporting anything (such as a monument)
5. (architeture) a tall cylindrical vertical upright and used to support a structure