1. He that wrestles with us strengthens our nerves and sharpens our skill. Our antagonist is our helper. �����Dz������˿����������ǵĵ�ʶ��ĥ�����ǵļ��ɡ����ּ������֡�
2. Second, efforts should focus on delivering high-quality vitamin K�Cantagonist therapy to patients at increased risk for ischemic stroke. ��Σ���רע��Ϊ�и�ȱѪ�����з��յIJ����ṩ��������ά����K�������ơ�
3. Randomized aldactone evaluation study (RALES) showed that adding aldosterone antagonist in the treatment of heart failure may decrease 30% mortality of all causes. ��������������о�����������˥�������м���ȩ��ͪ��ҩ��ʹ�������ʽ���30%��
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n.
1. someone who offers opposition
2. a muscle that relaxes while another contracts
3. a drug that neutralizes or counteracts the effects of another drug