Since the 1990s, Japan had been the largest donor of official development assistance (ODA) in the water and sanitation sector, and was determined even to increase its efforts to assist developing countries in that area.
自1990年代以来，日本在水与卫生领域一直是官方发展援助（ODA）的最大捐助国，并决定加大努力，在这一领域为发展中国家提供援助。