Because the chronic cause of disease pushing belt it pushes the belt cause of diseasetime to be long, has the important epidemiology significance.
慢性病原挤带者因其挤带病原时间长，具有重要的流行病学意义。
2
Because the chronic cause of disease gathers together the belt it to carry the cause of diseasetime to be long, has the important epidemiology exhausted righteousness.
慢性病原拢带者因其携带病原时间长，具有重要的流行病学惫义。
3
Gambling has been a common feature of American life forever, but for a long time it was broadly considered a sin, or a social disease.