奶牛蹄病是危害奶牛生产的三大疾病之一。
Hoof deformation and other hoof diseases are important diseases affecting dairy industry.
全球基金是中国卫生领域最大的国际合作项目，帮助防治艾滋病结核病疟疾三大疾病。
China Global Fund is the largest international health cooperation projects, to help fight AIDS Tuberculosis Malaria three diseases.
世界心脏日的主题“你的心脏有多年轻”，致力于通过控制三大危险因素饮食、身体活动和烟草使用来预防心血管疾病。
The theme of World Heart Day, "How Young is Your Heart" addresses prevention of cardiovascular diseases by controlling three major risk factors: diet, physical activity and tobacco use.
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