20. Calls upon UN-Habitat and the Division for Sustainable Development of the Department of Economic and Social Affairs of the Secretariat to work together closely in the preparations for the thirteenth session of the Commission on Sustainable Development in order to ensure a fruitful policy discussion of the thematic cluster of issues on water, sanitation and human settlements;
20. 呼吁人居署同秘书处经济和社会事务部可持续发展司密切合作，筹备可持续发展委员会第十三届会议，确保围绕水、环境卫生和人类住区这一组专题进行的政策讨论取得成果；