The key to meeting the Millennium Development Goals in poor countries is an increase in investment in people (health, education, nutrition, and family planning), the environment (water and sanitation, soils, forests, and biodiversity), and infrastructure (roads, power, and ports). Poor countries cannot afford these investments on their own, so rich countries must help.
贫困国家实现千年发展目标的关键在于加大对人的投资（医疗、教育、营养和家庭计划）、对环境的投资（水和卫生设施、土壤、森林和生物多样性）和对基础设施的投资（道路、能源和港口）。贫困国家依靠自身的力量无法担负这些投资，因此富裕的国家必须给予帮助。