可持续发展是指在满足当前需要的同时，不影响未来世代满足其需求的发展方式。它强调经济、社会和环境三个方面的平衡，并注重长期的可持续性。可持续发展是全球性的概念，也是联合国的一个重要议题。

英语翻译：Sustainable development refers to a development approach that meets the current needs without compromising the ability of future generations to meet their own needs. It emphasizes the balance between the economic, social, and environmental aspects, and emphasizes long-term sustainability. Sustainable development is a global concept and an important agenda of the United Nations.