Coal miners far and away have the highest mortalityrate from pneumoconiosis, or black lung disease, which is cause by long-term exposure to coal dust.
尘肺和黑肺病都是因长期接触煤尘所致,那煤矿工无疑是由这两种病导致的死亡率最高的人群。
2
The Dutch perinatal mortalityrate is one of the highest in Europe, though the cause is contested.
尽管造成围产儿死亡的原因存在争议,但荷兰的围产儿死亡率是全欧洲最高的国家之一。
3
NEC is a leading cause of disease and death in neonatal intensive care units, with a reported 2,500 cases occurring annually in the United States and a mortalityrate of 26 percent.