Water use continued, and environmental exposures mounted, even as serious illnesses became disturbingly common among the population.
河水继续被使用着，环境继续被污染着，村民们常常为自己是否患上严重疾病而惴惴不安。
2
Like other mental illnesses, alcohol use disorders (AUDs) develop through interactions of multiple genetic vulnerabilities and environmental factors over a long period.
像其他精神疾病一样，酒精使用障碍(AUDs)是长期多种基因弱点和环境因素相互作用形成的。
3
And such environmental factors would be illnesses, infections and stress.