世界卫生组织正在若干方面帮助改善水和环境卫生设施。
WHO is helping improve water and sanitation in several ways.
据估计，腹泻每年使160万儿童丧失生命，主要由不安全水和不良环境卫生设施造成。
Diarrhoea kills an estimated 1.6 million children each year, caused mainly by unsafe water and poor sanitation.
经验显示，长期预防霍乱取决于获得安全用水和适当的环境卫生设施，以防受到感染并阻断传播。
Experience has shown that long term-prevention of cholera depends on access to safe water and adequate sanitation to prevent exposure and interrupt transmission.
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