4. Urges Governments to promote pro-poor investments in services and infrastructure, in particular water and sanitation, in order to improve living environments, in particular in slums and informal settlements;
4. 促请各国政府促进在服务和基础设施方面，特别是在水和卫生领域，作出有利贫民的投资，以便特别是在贫民窟和非正规住区，改善生活环境；