Sustainable development offers a new concept for the world economy in the twenty-first century. Rather than focusing solely on income, sustainable development encourages cities, countries, and the world to focus simultaneously on three goals: economic prosperity, social inclusion, and environmental sustainability.
可持续发展为二十一世纪世界经济提供了新概念。可持续发展鼓励城市国家和世界不再专注于收入，而是同时关注三个目标：经济繁荣、社会包容和环境可持续。