1. For the match, Federer had 50 aces and 107 winners, compared with 38 unforced errors. ���ⳡ�����У��ѵ�����50�η���ֱ�ӵ÷ֺ�107��Ӯ��38����������ʧ��
2. But nothing could stop Federer, who won 51 of the last 65 points and finished with 38 winners to a mere nine unforced errors. ûʲô������ֹ�ѵ���ǰ���IJ���������38�������÷ֺͽ����Ÿ���������ʧ��Ӯ�����ⳡ�������65���е�51�֡�
3. I believe that my Tao will not vanish prematurely as long as I keep conserved this unforced rule to my investment and practice. �����ţ�ֻҪ�Ҽ����������ֲ��������̬����Ͷ�ʡ������ϣ���ô���ҵĵ����϶��Dz��ᡸ���ѡ��ġ�
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adj.
1. not brought about by coercion or force
2. not resulting from undue effort; not forced