4. 强调严重依赖初级商品的发展中国家有必要继续促成鼓励贸易和出口部门多样化和自由化、提高竞争力的国内政策和体制环境；
4. Emphasizes the need for efforts by the developing countries that are heavily dependent on primary commodities to continue to promote a domestic policy and an institutional environment that encourage diversification and liberalization of the trade and export sectors and enhance competitiveness;