knowledge and economy知识经济
knowledge e economy知识经济
knowledge based economy ages知识经济时代
knowledge based economy times知识经济时代
knowledge based economy era知识经济时代
knowledge industrialized economy知业经济
knowledge-economy time知识经济时代
knowledge and economy era知识经济时代
knowledge dominated economy知识经济
21st century is the knowledge economy times.
21世纪是知识经济时代。
参考来源 - 高新技术企业人才队伍建设研究 （研究生论文）21st century is knowledge economy times.
二十一世纪是知识经济时代。
参考来源 - 创新人才的培养与德育创新N（名词） an economy in which information services are dominant as an area of growth 知识经济