Gǎishuǐ gǎicè shì zhòngyào de gōnggòng wèishēng gōngzuò.
Improving water supply and sanitation is important public health work.
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Bureaucratic/public-health term. Almost always appears in the set phrase 改水改厕 gǎishuǐ gǎicè ('improve water and latrines'), referring to China's rural sanitation campaigns to reduce waterborne disease.
