The latest theoretical achievements of the world in the 21st century are a scientific guide for China's high-quality economic development and comprehensive construction of a modern socialist country. The outline has 15 chapters, 58 items, 146 articles and 100000 words. The ability and level to build a new development pattern, effectively translate the learning results into vivid practice to promote high-quality development, and make unremitting efforts to build a modern socialist country in an all-round way, win the great victory of socialism with Chinese characteristics in the new era, and realize the Chinese dream of the great rejuvenation of the Chinese nation. (Xinhua News Agency)