Regular, sensibly vigorous physical activity, for example, is a valuable tool in preventing or controlling overweight and heart, lung, and circulatorysystemdiseases.
以一些有活力的，剧烈运动为例，通常，这些运动是预防和控制超重，心脏，肺和循环系统疾病的有效手段。
2
These virulence factors enable E. coli can be settled in the respiratory or gastrointestinal mucosa, multiply and invade the blood circulatorysystem, causing various diseases.
The leading causes of death were malignant tumors, injury and intoxication, diseases of circulatory, infectious and parasitic diseases and diseases of digestive system.