2018年是中国改革开放四十周年。改革开放以来，中国经济社会发展取得的成就举世瞩目。进入中国特色社会主义发展的新阶段，如何理解中国改革开放成功的关键，需要从历史汲取哪些经验和教训?在新时代，面临哪些新的挑战，又该如何推动改革的深化，到2035年基本实现现代化？

2018 marks the 40th anniversary of China’s Reform and Opening-up. Since then, remarkable achievements have been made in China’s economic and social development. In this new development stage of Socialism with Chinese Characteristics, what lessons can we draw from history so as to understand why the Reform and Opening-up policy has been a success? In the New Era, what are the new challenges, and how can we deepen the reform in order to realise basic modernisation by 2035?