可以填of 也可以填for
要看具体的语境
比如 i need money
i am in need of money= I am in want of money 我需要钱
再比如 There is a great need of money 需要钱
短语the need for money 需要钱
再问： I am in need of money= I am in want of money 看不懂
再答： need ������ʱ������˵need sth ���� i need you need�����ʱ���ж���need for sth ������ need for sb/sth to do sth ����there is an urgent need for qualified teachers ������Ҫ�ϸ���ʦ ����there is no need for you to get up early tomorrow �����㲻������ ����need�������ʱ���ж���in need of Ҳ����Ҫ����˼��ʾ������Ҫ �ر���Ҫ ����i am in need of some fresh air �Һ������һ�����ʿ���
